Finding the Third Proportional to 641,754,760.50 and 1,406,538,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   641,754,760.50 : 1,406,538,112.50 = 1,406,538,112.50 : x
2. Step 2: Convert to fraction form
   641,754,760.50/1,406,538,112.50 = 1,406,538,112.50/x
3. Step 3: Cross multiply
   641,754,760.50x = 1,406,538,112.50 × 1,406,538,112.50
4. Step 4: Simplify right side
   641,754,760.50x = 1,978,349,461,915,062,784
5. Step 5: Solve for x
   x = 1,978,349,461,915,062,784/641,754,760.50
6. Step 6: Final answer
   x = 3,082,718,794.91