Finding the Third Proportional to 60,114.50 and 128,272

Step by Step Solution

1. Step 1: Write the proportion equation
   60,114.50 : 128,272 = 128,272 : x
2. Step 2: Convert to fraction form
   60,114.50/128,272 = 128,272/x
3. Step 3: Cross multiply
   60,114.50x = 128,272 × 128,272
4. Step 4: Simplify right side
   60,114.50x = 16,453,705,984
5. Step 5: Solve for x
   x = 16,453,705,984/60,114.50
6. Step 6: Final answer
   x = 273,706.11