Finding the Third Proportional to 31,783.50 and 69,951

Step by Step Solution

1. Step 1: Write the proportion equation
   31,783.50 : 69,951 = 69,951 : x
2. Step 2: Convert to fraction form
   31,783.50/69,951 = 69,951/x
3. Step 3: Cross multiply
   31,783.50x = 69,951 × 69,951
4. Step 4: Simplify right side
   31,783.50x = 4,893,142,401
5. Step 5: Solve for x
   x = 4,893,142,401/31,783.50
6. Step 6: Final answer
   x = 153,952.28