Finding the Third Proportional to 34,153.50 and 74,139

Step by Step Solution

1. Step 1: Write the proportion equation
   34,153.50 : 74,139 = 74,139 : x
2. Step 2: Convert to fraction form
   34,153.50/74,139 = 74,139/x
3. Step 3: Cross multiply
   34,153.50x = 74,139 × 74,139
4. Step 4: Simplify right side
   34,153.50x = 5,496,591,321
5. Step 5: Solve for x
   x = 5,496,591,321/34,153.50
6. Step 6: Final answer
   x = 160,937.86