Finding the Third Proportional to 20,772.50 and 31,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,772.50 : 31,152.50 = 31,152.50 : x
2. Step 2: Convert to fraction form
   20,772.50/31,152.50 = 31,152.50/x
3. Step 3: Cross multiply
   20,772.50x = 31,152.50 × 31,152.50
4. Step 4: Simplify right side
   20,772.50x = 970,478,256.25
5. Step 5: Solve for x
   x = 970,478,256.25/20,772.50
6. Step 6: Final answer
   x = 46,719.38