Finding the Third Proportional to 19,841,136 and 42,516,624

Step by Step Solution

1. Step 1: Write the proportion equation
   19,841,136 : 42,516,624 = 42,516,624 : x
2. Step 2: Convert to fraction form
   19,841,136/42,516,624 = 42,516,624/x
3. Step 3: Cross multiply
   19,841,136x = 42,516,624 × 42,516,624
4. Step 4: Simplify right side
   19,841,136x = 1,807,663,316,357,376
5. Step 5: Solve for x
   x = 1,807,663,316,357,376/19,841,136
6. Step 6: Final answer
   x = 91,106,845.71