Finding the Third Proportional to 28,132.17 and 66,408.05

Step by Step Solution

1. Step 1: Write the proportion equation
   28,132.17 : 66,408.05 = 66,408.05 : x
2. Step 2: Convert to fraction form
   28,132.17/66,408.05 = 66,408.05/x
3. Step 3: Cross multiply
   28,132.17x = 66,408.05 × 66,408.05
4. Step 4: Simplify right side
   28,132.17x = 4,410,028,689.75
5. Step 5: Solve for x
   x = 4,410,028,689.75/28,132.17
6. Step 6: Final answer
   x = 156,761.05