Finding the Third Proportional to 89,820 and 124,886.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,820 : 124,886.50 = 124,886.50 : x
2. Step 2: Convert to fraction form
   89,820/124,886.50 = 124,886.50/x
3. Step 3: Cross multiply
   89,820x = 124,886.50 × 124,886.50
4. Step 4: Simplify right side
   89,820x = 15,596,637,882.25
5. Step 5: Solve for x
   x = 15,596,637,882.25/89,820
6. Step 6: Final answer
   x = 173,643.26