Finding the Third Proportional to 53,108.50 and 86,274.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,108.50 : 86,274.75 = 86,274.75 : x
2. Step 2: Convert to fraction form
   53,108.50/86,274.75 = 86,274.75/x
3. Step 3: Cross multiply
   53,108.50x = 86,274.75 × 86,274.75
4. Step 4: Simplify right side
   53,108.50x = 7,443,332,487.56
5. Step 5: Solve for x
   x = 7,443,332,487.56/53,108.50
6. Step 6: Final answer
   x = 140,153.32