Finding the Third Proportional to 1,921.50 and 2,981.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.50 : 2,981.25 = 2,981.25 : x
2. Step 2: Convert to fraction form
   1,921.50/2,981.25 = 2,981.25/x
3. Step 3: Cross multiply
   1,921.50x = 2,981.25 × 2,981.25
4. Step 4: Simplify right side
   1,921.50x = 8,887,851.56
5. Step 5: Solve for x
   x = 8,887,851.56/1,921.50
6. Step 6: Final answer
   x = 4,625.48