Finding the Third Proportional to 109,765,770 and 238,662,686

Step by Step Solution

1. Step 1: Write the proportion equation
   109,765,770 : 238,662,686 = 238,662,686 : x
2. Step 2: Convert to fraction form
   109,765,770/238,662,686 = 238,662,686/x
3. Step 3: Cross multiply
   109,765,770x = 238,662,686 × 238,662,686
4. Step 4: Simplify right side
   109,765,770x = 56,959,877,688,734,592
5. Step 5: Solve for x
   x = 56,959,877,688,734,592/109,765,770
6. Step 6: Final answer
   x = 518,922,043.63