Finding the Third Proportional to 641,754,775 and 1,406,538,141

Step by Step Solution

1. Step 1: Write the proportion equation
   641,754,775 : 1,406,538,141 = 1,406,538,141 : x
2. Step 2: Convert to fraction form
   641,754,775/1,406,538,141 = 1,406,538,141/x
3. Step 3: Cross multiply
   641,754,775x = 1,406,538,141 × 1,406,538,141
4. Step 4: Simplify right side
   641,754,775x = 1,978,349,542,087,735,808
5. Step 5: Solve for x
   x = 1,978,349,542,087,735,808/641,754,775
6. Step 6: Final answer
   x = 3,082,718,850.18