Finding the Third Proportional to 9,378.50 and 22,139

Step by Step Solution

1. Step 1: Write the proportion equation
   9,378.50 : 22,139 = 22,139 : x
2. Step 2: Convert to fraction form
   9,378.50/22,139 = 22,139/x
3. Step 3: Cross multiply
   9,378.50x = 22,139 × 22,139
4. Step 4: Simplify right side
   9,378.50x = 490,135,321
5. Step 5: Solve for x
   x = 490,135,321/9,378.50
6. Step 6: Final answer
   x = 52,261.59