Finding the Third Proportional to 72,445.50 and 110,820

Step by Step Solution

1. Step 1: Write the proportion equation
   72,445.50 : 110,820 = 110,820 : x
2. Step 2: Convert to fraction form
   72,445.50/110,820 = 110,820/x
3. Step 3: Cross multiply
   72,445.50x = 110,820 × 110,820
4. Step 4: Simplify right side
   72,445.50x = 12,281,072,400
5. Step 5: Solve for x
   x = 12,281,072,400/72,445.50
6. Step 6: Final answer
   x = 169,521.54