Finding the Third Proportional to 17,764 and 38,840

Step by Step Solution

1. Step 1: Write the proportion equation
   17,764 : 38,840 = 38,840 : x
2. Step 2: Convert to fraction form
   17,764/38,840 = 38,840/x
3. Step 3: Cross multiply
   17,764x = 38,840 × 38,840
4. Step 4: Simplify right side
   17,764x = 1,508,545,600
5. Step 5: Solve for x
   x = 1,508,545,600/17,764
6. Step 6: Final answer
   x = 84,921.50