Finding the Third Proportional to 72,405.50 and 110,762.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,405.50 : 110,762.50 = 110,762.50 : x
2. Step 2: Convert to fraction form
   72,405.50/110,762.50 = 110,762.50/x
3. Step 3: Cross multiply
   72,405.50x = 110,762.50 × 110,762.50
4. Step 4: Simplify right side
   72,405.50x = 12,268,331,406.25
5. Step 5: Solve for x
   x = 12,268,331,406.25/72,405.50
6. Step 6: Final answer
   x = 169,439.22