Finding the Third Proportional to 641,754,770 and 1,406,538,132

Step by Step Solution

1. Step 1: Write the proportion equation
   641,754,770 : 1,406,538,132 = 1,406,538,132 : x
2. Step 2: Convert to fraction form
   641,754,770/1,406,538,132 = 1,406,538,132/x
3. Step 3: Cross multiply
   641,754,770x = 1,406,538,132 × 1,406,538,132
4. Step 4: Simplify right side
   641,754,770x = 1,978,349,516,770,049,536
5. Step 5: Solve for x
   x = 1,978,349,516,770,049,536/641,754,770
6. Step 6: Final answer
   x = 3,082,718,834.75