Finding the Third Proportional to 38,810 and 58,155

Step by Step Solution

1. Step 1: Write the proportion equation
   38,810 : 58,155 = 58,155 : x
2. Step 2: Convert to fraction form
   38,810/58,155 = 58,155/x
3. Step 3: Cross multiply
   38,810x = 58,155 × 58,155
4. Step 4: Simplify right side
   38,810x = 3,382,004,025
5. Step 5: Solve for x
   x = 3,382,004,025/38,810
6. Step 6: Final answer
   x = 87,142.59