Finding the Third Proportional to 40,555 and 59,779.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,555 : 59,779.50 = 59,779.50 : x
2. Step 2: Convert to fraction form
   40,555/59,779.50 = 59,779.50/x
3. Step 3: Cross multiply
   40,555x = 59,779.50 × 59,779.50
4. Step 4: Simplify right side
   40,555x = 3,573,588,620.25
5. Step 5: Solve for x
   x = 3,573,588,620.25/40,555
6. Step 6: Final answer
   x = 88,117.09