Finding the Third Proportional to 30,280.88 and 61,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,280.88 : 61,789.50 = 61,789.50 : x
2. Step 2: Convert to fraction form
   30,280.88/61,789.50 = 61,789.50/x
3. Step 3: Cross multiply
   30,280.88x = 61,789.50 × 61,789.50
4. Step 4: Simplify right side
   30,280.88x = 3,817,942,310.25
5. Step 5: Solve for x
   x = 3,817,942,310.25/30,280.88
6. Step 6: Final answer
   x = 126,084.28