Finding the Third Proportional to 52,860 and 72,486

Step by Step Solution

1. Step 1: Write the proportion equation
   52,860 : 72,486 = 72,486 : x
2. Step 2: Convert to fraction form
   52,860/72,486 = 72,486/x
3. Step 3: Cross multiply
   52,860x = 72,486 × 72,486
4. Step 4: Simplify right side
   52,860x = 5,254,220,196
5. Step 5: Solve for x
   x = 5,254,220,196/52,860
6. Step 6: Final answer
   x = 99,398.79