Finding the Third Proportional to 72,438.75 and 110,810.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,438.75 : 110,810.88 = 110,810.88 : x
2. Step 2: Convert to fraction form
   72,438.75/110,810.88 = 110,810.88/x
3. Step 3: Cross multiply
   72,438.75x = 110,810.88 × 110,810.88
4. Step 4: Simplify right side
   72,438.75x = 12,279,050,018.27
5. Step 5: Solve for x
   x = 12,279,050,018.27/72,438.75
6. Step 6: Final answer
   x = 169,509.41