Finding the Third Proportional to 31,483.50 and 69,960

Step by Step Solution

1. Step 1: Write the proportion equation
   31,483.50 : 69,960 = 69,960 : x
2. Step 2: Convert to fraction form
   31,483.50/69,960 = 69,960/x
3. Step 3: Cross multiply
   31,483.50x = 69,960 × 69,960
4. Step 4: Simplify right side
   31,483.50x = 4,894,401,600
5. Step 5: Solve for x
   x = 4,894,401,600/31,483.50
6. Step 6: Final answer
   x = 155,459.26