Finding the Third Proportional to 72,810 and 109,884

Step by Step Solution

1. Step 1: Write the proportion equation
   72,810 : 109,884 = 109,884 : x
2. Step 2: Convert to fraction form
   72,810/109,884 = 109,884/x
3. Step 3: Cross multiply
   72,810x = 109,884 × 109,884
4. Step 4: Simplify right side
   72,810x = 12,074,493,456
5. Step 5: Solve for x
   x = 12,074,493,456/72,810
6. Step 6: Final answer
   x = 165,835.65