Finding the Third Proportional to 28,659 and 63,132

Step by Step Solution

1. Step 1: Write the proportion equation
   28,659 : 63,132 = 63,132 : x
2. Step 2: Convert to fraction form
   28,659/63,132 = 63,132/x
3. Step 3: Cross multiply
   28,659x = 63,132 × 63,132
4. Step 4: Simplify right side
   28,659x = 3,985,649,424
5. Step 5: Solve for x
   x = 3,985,649,424/28,659
6. Step 6: Final answer
   x = 139,071.48