Finding the Third Proportional to 82,890 and 112,549.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,890 : 112,549.50 = 112,549.50 : x
2. Step 2: Convert to fraction form
   82,890/112,549.50 = 112,549.50/x
3. Step 3: Cross multiply
   82,890x = 112,549.50 × 112,549.50
4. Step 4: Simplify right side
   82,890x = 12,667,389,950.25
5. Step 5: Solve for x
   x = 12,667,389,950.25/82,890
6. Step 6: Final answer
   x = 152,821.69