Finding the Third Proportional to 109,765,747.50 and 238,662,642

Step by Step Solution

1. Step 1: Write the proportion equation
   109,765,747.50 : 238,662,642 = 238,662,642 : x
2. Step 2: Convert to fraction form
   109,765,747.50/238,662,642 = 238,662,642/x
3. Step 3: Cross multiply
   109,765,747.50x = 238,662,642 × 238,662,642
4. Step 4: Simplify right side
   109,765,747.50x = 56,959,856,686,420,160
5. Step 5: Solve for x
   x = 56,959,856,686,420,160/109,765,747.50
6. Step 6: Final answer
   x = 518,921,958.66