Finding the Third Proportional to 31,271 and 63,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,271 : 63,815.50 = 63,815.50 : x
2. Step 2: Convert to fraction form
   31,271/63,815.50 = 63,815.50/x
3. Step 3: Cross multiply
   31,271x = 63,815.50 × 63,815.50
4. Step 4: Simplify right side
   31,271x = 4,072,418,040.25
5. Step 5: Solve for x
   x = 4,072,418,040.25/31,271
6. Step 6: Final answer
   x = 130,229.86