Finding the Third Proportional to 54,697.50 and 69,886.13

Step by Step Solution

1. Step 1: Write the proportion equation
   54,697.50 : 69,886.13 = 69,886.13 : x
2. Step 2: Convert to fraction form
   54,697.50/69,886.13 = 69,886.13/x
3. Step 3: Cross multiply
   54,697.50x = 69,886.13 × 69,886.13
4. Step 4: Simplify right side
   54,697.50x = 4,884,070,467.52
5. Step 5: Solve for x
   x = 4,884,070,467.52/54,697.50
6. Step 6: Final answer
   x = 89,292.39