Finding the Third Proportional to 52,173 and 78,499

Step by Step Solution

1. Step 1: Write the proportion equation
   52,173 : 78,499 = 78,499 : x
2. Step 2: Convert to fraction form
   52,173/78,499 = 78,499/x
3. Step 3: Cross multiply
   52,173x = 78,499 × 78,499
4. Step 4: Simplify right side
   52,173x = 6,162,093,001
5. Step 5: Solve for x
   x = 6,162,093,001/52,173
6. Step 6: Final answer
   x = 118,108.85