Finding the Third Proportional to 72,610.31 and 158,139

Step by Step Solution

1. Step 1: Write the proportion equation
   72,610.31 : 158,139 = 158,139 : x
2. Step 2: Convert to fraction form
   72,610.31/158,139 = 158,139/x
3. Step 3: Cross multiply
   72,610.31x = 158,139 × 158,139
4. Step 4: Simplify right side
   72,610.31x = 25,007,943,321
5. Step 5: Solve for x
   x = 25,007,943,321/72,610.31
6. Step 6: Final answer
   x = 344,413.11