Finding the Third Proportional to 72,439.31 and 110,811.94

Step by Step Solution

1. Step 1: Write the proportion equation
   72,439.31 : 110,811.94 = 110,811.94 : x
2. Step 2: Convert to fraction form
   72,439.31/110,811.94 = 110,811.94/x
3. Step 3: Cross multiply
   72,439.31x = 110,811.94 × 110,811.94
4. Step 4: Simplify right side
   72,439.31x = 12,279,285,492.50
5. Step 5: Solve for x
   x = 12,279,285,492.50/72,439.31
6. Step 6: Final answer
   x = 169,511.35