Finding the Third Proportional to 621.50 and 973.25

Step by Step Solution

1. Step 1: Write the proportion equation
   621.50 : 973.25 = 973.25 : x
2. Step 2: Convert to fraction form
   621.50/973.25 = 973.25/x
3. Step 3: Cross multiply
   621.50x = 973.25 × 973.25
4. Step 4: Simplify right side
   621.50x = 947,215.56
5. Step 5: Solve for x
   x = 947,215.56/621.50
6. Step 6: Final answer
   x = 1,524.08