Finding the Third Proportional to 89,820 and 124,886.25

Step by Step Solution

1. Step 1: Write the proportion equation
   89,820 : 124,886.25 = 124,886.25 : x
2. Step 2: Convert to fraction form
   89,820/124,886.25 = 124,886.25/x
3. Step 3: Cross multiply
   89,820x = 124,886.25 × 124,886.25
4. Step 4: Simplify right side
   89,820x = 15,596,575,439.06
5. Step 5: Solve for x
   x = 15,596,575,439.06/89,820
6. Step 6: Final answer
   x = 173,642.57