Finding the Third Proportional to 52,602 and 72,315

Step by Step Solution

1. Step 1: Write the proportion equation
   52,602 : 72,315 = 72,315 : x
2. Step 2: Convert to fraction form
   52,602/72,315 = 72,315/x
3. Step 3: Cross multiply
   52,602x = 72,315 × 72,315
4. Step 4: Simplify right side
   52,602x = 5,229,459,225
5. Step 5: Solve for x
   x = 5,229,459,225/52,602
6. Step 6: Final answer
   x = 99,415.60