Finding the Third Proportional to 60,949.13 and 90,899.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,949.13 : 90,899.72 = 90,899.72 : x
2. Step 2: Convert to fraction form
   60,949.13/90,899.72 = 90,899.72/x
3. Step 3: Cross multiply
   60,949.13x = 90,899.72 × 90,899.72
4. Step 4: Simplify right side
   60,949.13x = 8,262,758,868.83
5. Step 5: Solve for x
   x = 8,262,758,868.83/60,949.13
6. Step 6: Final answer
   x = 135,568.13