Finding the Third Proportional to 103,659,429 and 239,978,139

Step by Step Solution

1. Step 1: Write the proportion equation
   103,659,429 : 239,978,139 = 239,978,139 : x
2. Step 2: Convert to fraction form
   103,659,429/239,978,139 = 239,978,139/x
3. Step 3: Cross multiply
   103,659,429x = 239,978,139 × 239,978,139
4. Step 4: Simplify right side
   103,659,429x = 57,589,507,197,903,320
5. Step 5: Solve for x
   x = 57,589,507,197,903,320/103,659,429
6. Step 6: Final answer
   x = 555,564,580.60