Finding the Third Proportional to 247,516.50 and 386,058

Step by Step Solution

1. Step 1: Write the proportion equation
   247,516.50 : 386,058 = 386,058 : x
2. Step 2: Convert to fraction form
   247,516.50/386,058 = 386,058/x
3. Step 3: Cross multiply
   247,516.50x = 386,058 × 386,058
4. Step 4: Simplify right side
   247,516.50x = 149,040,779,364
5. Step 5: Solve for x
   x = 149,040,779,364/247,516.50
6. Step 6: Final answer
   x = 602,144.82