Finding the Third Proportional to 56,283 and 89,122.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,283 : 89,122.50 = 89,122.50 : x
2. Step 2: Convert to fraction form
   56,283/89,122.50 = 89,122.50/x
3. Step 3: Cross multiply
   56,283x = 89,122.50 × 89,122.50
4. Step 4: Simplify right side
   56,283x = 7,942,820,006.25
5. Step 5: Solve for x
   x = 7,942,820,006.25/56,283
6. Step 6: Final answer
   x = 141,122.90