Finding the Third Proportional to 53,218.50 and 88,694.25

Step by Step Solution

1. Step 1: Write the proportion equation
   53,218.50 : 88,694.25 = 88,694.25 : x
2. Step 2: Convert to fraction form
   53,218.50/88,694.25 = 88,694.25/x
3. Step 3: Cross multiply
   53,218.50x = 88,694.25 × 88,694.25
4. Step 4: Simplify right side
   53,218.50x = 7,866,669,983.06
5. Step 5: Solve for x
   x = 7,866,669,983.06/53,218.50
6. Step 6: Final answer
   x = 147,818.33