Finding the Third Proportional to 60,369 and 87,069

Step by Step Solution

1. Step 1: Write the proportion equation
   60,369 : 87,069 = 87,069 : x
2. Step 2: Convert to fraction form
   60,369/87,069 = 87,069/x
3. Step 3: Cross multiply
   60,369x = 87,069 × 87,069
4. Step 4: Simplify right side
   60,369x = 7,581,010,761
5. Step 5: Solve for x
   x = 7,581,010,761/60,369
6. Step 6: Final answer
   x = 125,577.88