Finding the Third Proportional to 72,807 and 109,725

Step by Step Solution

1. Step 1: Write the proportion equation
   72,807 : 109,725 = 109,725 : x
2. Step 2: Convert to fraction form
   72,807/109,725 = 109,725/x
3. Step 3: Cross multiply
   72,807x = 109,725 × 109,725
4. Step 4: Simplify right side
   72,807x = 12,039,575,625
5. Step 5: Solve for x
   x = 12,039,575,625/72,807
6. Step 6: Final answer
   x = 165,362.89