Finding the Third Proportional to 72,912.50 and 110,843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,912.50 : 110,843.50 = 110,843.50 : x
2. Step 2: Convert to fraction form
   72,912.50/110,843.50 = 110,843.50/x
3. Step 3: Cross multiply
   72,912.50x = 110,843.50 × 110,843.50
4. Step 4: Simplify right side
   72,912.50x = 12,286,281,492.25
5. Step 5: Solve for x
   x = 12,286,281,492.25/72,912.50
6. Step 6: Final answer
   x = 168,507.20