Finding the Third Proportional to 28,978.50 and 63,492

Step by Step Solution

1. Step 1: Write the proportion equation
   28,978.50 : 63,492 = 63,492 : x
2. Step 2: Convert to fraction form
   28,978.50/63,492 = 63,492/x
3. Step 3: Cross multiply
   28,978.50x = 63,492 × 63,492
4. Step 4: Simplify right side
   28,978.50x = 4,031,234,064
5. Step 5: Solve for x
   x = 4,031,234,064/28,978.50
6. Step 6: Final answer
   x = 139,111.21