Finding the Third Proportional to 30,331.81 and 63,085.55

Step by Step Solution

1. Step 1: Write the proportion equation
   30,331.81 : 63,085.55 = 63,085.55 : x
2. Step 2: Convert to fraction form
   30,331.81/63,085.55 = 63,085.55/x
3. Step 3: Cross multiply
   30,331.81x = 63,085.55 × 63,085.55
4. Step 4: Simplify right side
   30,331.81x = 3,979,786,963.80
5. Step 5: Solve for x
   x = 3,979,786,963.80/30,331.81
6. Step 6: Final answer
   x = 131,208.35