Finding the Third Proportional to 31,376 and 69,070

Step by Step Solution

1. Step 1: Write the proportion equation
   31,376 : 69,070 = 69,070 : x
2. Step 2: Convert to fraction form
   31,376/69,070 = 69,070/x
3. Step 3: Cross multiply
   31,376x = 69,070 × 69,070
4. Step 4: Simplify right side
   31,376x = 4,770,664,900
5. Step 5: Solve for x
   x = 4,770,664,900/31,376
6. Step 6: Final answer
   x = 152,048.22