Finding the Third Proportional to 61,086.38 and 142,729.88

Step by Step Solution

1. Step 1: Write the proportion equation
   61,086.38 : 142,729.88 = 142,729.88 : x
2. Step 2: Convert to fraction form
   61,086.38/142,729.88 = 142,729.88/x
3. Step 3: Cross multiply
   61,086.38x = 142,729.88 × 142,729.88
4. Step 4: Simplify right side
   61,086.38x = 20,371,817,217.52
5. Step 5: Solve for x
   x = 20,371,817,217.52/61,086.38
6. Step 6: Final answer
   x = 333,492.00