Finding the Third Proportional to 112,640 and 157,478.25

Step by Step Solution

1. Step 1: Write the proportion equation
   112,640 : 157,478.25 = 157,478.25 : x
2. Step 2: Convert to fraction form
   112,640/157,478.25 = 157,478.25/x
3. Step 3: Cross multiply
   112,640x = 157,478.25 × 157,478.25
4. Step 4: Simplify right side
   112,640x = 24,799,399,223.06
5. Step 5: Solve for x
   x = 24,799,399,223.06/112,640
6. Step 6: Final answer
   x = 220,165.12