Finding the Third Proportional to 59,283 and 90,429.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,283 : 90,429.50 = 90,429.50 : x
2. Step 2: Convert to fraction form
   59,283/90,429.50 = 90,429.50/x
3. Step 3: Cross multiply
   59,283x = 90,429.50 × 90,429.50
4. Step 4: Simplify right side
   59,283x = 8,177,494,470.25
5. Step 5: Solve for x
   x = 8,177,494,470.25/59,283
6. Step 6: Final answer
   x = 137,939.96