Finding the Third Proportional to 31,516 and 69,244

Step by Step Solution

1. Step 1: Write the proportion equation
   31,516 : 69,244 = 69,244 : x
2. Step 2: Convert to fraction form
   31,516/69,244 = 69,244/x
3. Step 3: Cross multiply
   31,516x = 69,244 × 69,244
4. Step 4: Simplify right side
   31,516x = 4,794,731,536
5. Step 5: Solve for x
   x = 4,794,731,536/31,516
6. Step 6: Final answer
   x = 152,136.42