Finding the Third Proportional to 109,462,988 and 237,978,616

Step by Step Solution

1. Step 1: Write the proportion equation
   109,462,988 : 237,978,616 = 237,978,616 : x
2. Step 2: Convert to fraction form
   109,462,988/237,978,616 = 237,978,616/x
3. Step 3: Cross multiply
   109,462,988x = 237,978,616 × 237,978,616
4. Step 4: Simplify right side
   109,462,988x = 56,633,821,673,275,456
5. Step 5: Solve for x
   x = 56,633,821,673,275,456/109,462,988
6. Step 6: Final answer
   x = 517,378,729.63