Finding the Third Proportional to 113,401,438 and 242,346,978

Step by Step Solution

1. Step 1: Write the proportion equation
   113,401,438 : 242,346,978 = 242,346,978 : x
2. Step 2: Convert to fraction form
   113,401,438/242,346,978 = 242,346,978/x
3. Step 3: Cross multiply
   113,401,438x = 242,346,978 × 242,346,978
4. Step 4: Simplify right side
   113,401,438x = 58,732,057,745,732,480
5. Step 5: Solve for x
   x = 58,732,057,745,732,480/113,401,438
6. Step 6: Final answer
   x = 517,912,812.94