Finding the Third Proportional to 19,369,578,210,240 and 42,687,293,345,280

Step by Step Solution

1. Step 1: Write the proportion equation
   19,369,578,210,240 : 42,687,293,345,280 = 42,687,293,345,280 : x
2. Step 2: Convert to fraction form
   19,369,578,210,240/42,687,293,345,280 = 42,687,293,345,280/x
3. Step 3: Cross multiply
   19,369,578,210,240x = 42,687,293,345,280 × 42,687,293,345,280
4. Step 4: Simplify right side
   19,369,578,210,240x = 1,822,205,013,145,986,201,924,141,056
5. Step 5: Solve for x
   x = 1,822,205,013,145,986,201,924,141,056/19,369,578,210,240
6. Step 6: Final answer
   x = 94,075,616,586,356.64