Finding the Third Proportional to 72,602 and 109,518

Step by Step Solution

1. Step 1: Write the proportion equation
   72,602 : 109,518 = 109,518 : x
2. Step 2: Convert to fraction form
   72,602/109,518 = 109,518/x
3. Step 3: Cross multiply
   72,602x = 109,518 × 109,518
4. Step 4: Simplify right side
   72,602x = 11,994,192,324
5. Step 5: Solve for x
   x = 11,994,192,324/72,602
6. Step 6: Final answer
   x = 165,204.71