Finding the Third Proportional to 1,528,432,807.50 and 3,333,555,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,528,432,807.50 : 3,333,555,418.50 = 3,333,555,418.50 : x
2. Step 2: Convert to fraction form
   1,528,432,807.50/3,333,555,418.50 = 3,333,555,418.50/x
3. Step 3: Cross multiply
   1,528,432,807.50x = 3,333,555,418.50 × 3,333,555,418.50
4. Step 4: Simplify right side
   1,528,432,807.50x = 11,112,591,728,210,710,528
5. Step 5: Solve for x
   x = 11,112,591,728,210,710,528/1,528,432,807.50
6. Step 6: Final answer
   x = 7,270,579,166.90