Finding the Third Proportional to 28,521.84 and 66,025.69

Step by Step Solution

1. Step 1: Write the proportion equation
   28,521.84 : 66,025.69 = 66,025.69 : x
2. Step 2: Convert to fraction form
   28,521.84/66,025.69 = 66,025.69/x
3. Step 3: Cross multiply
   28,521.84x = 66,025.69 × 66,025.69
4. Step 4: Simplify right side
   28,521.84x = 4,359,391,409.85
5. Step 5: Solve for x
   x = 4,359,391,409.85/28,521.84
6. Step 6: Final answer
   x = 152,843.96