Finding the Third Proportional to 71,293.50 and 153,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,293.50 : 153,643.50 = 153,643.50 : x
2. Step 2: Convert to fraction form
   71,293.50/153,643.50 = 153,643.50/x
3. Step 3: Cross multiply
   71,293.50x = 153,643.50 × 153,643.50
4. Step 4: Simplify right side
   71,293.50x = 23,606,325,092.25
5. Step 5: Solve for x
   x = 23,606,325,092.25/71,293.50
6. Step 6: Final answer
   x = 331,114.69