Finding the Third Proportional to 109,986,055 and 238,889,139

Step by Step Solution

1. Step 1: Write the proportion equation
   109,986,055 : 238,889,139 = 238,889,139 : x
2. Step 2: Convert to fraction form
   109,986,055/238,889,139 = 238,889,139/x
3. Step 3: Cross multiply
   109,986,055x = 238,889,139 × 238,889,139
4. Step 4: Simplify right side
   109,986,055x = 57,068,020,732,161,320
5. Step 5: Solve for x
   x = 57,068,020,732,161,320/109,986,055
6. Step 6: Final answer
   x = 518,865,966.53