Finding the Third Proportional to 28,128 and 43,360.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,128 : 43,360.50 = 43,360.50 : x
2. Step 2: Convert to fraction form
   28,128/43,360.50 = 43,360.50/x
3. Step 3: Cross multiply
   28,128x = 43,360.50 × 43,360.50
4. Step 4: Simplify right side
   28,128x = 1,880,132,960.25
5. Step 5: Solve for x
   x = 1,880,132,960.25/28,128
6. Step 6: Final answer
   x = 66,842.04