Finding the Third Proportional to 66,508.59 and 141,643.69

Step by Step Solution

1. Step 1: Write the proportion equation
   66,508.59 : 141,643.69 = 141,643.69 : x
2. Step 2: Convert to fraction form
   66,508.59/141,643.69 = 141,643.69/x
3. Step 3: Cross multiply
   66,508.59x = 141,643.69 × 141,643.69
4. Step 4: Simplify right side
   66,508.59x = 20,062,934,208.60
5. Step 5: Solve for x
   x = 20,062,934,208.60/66,508.59
6. Step 6: Final answer
   x = 301,659.28