Finding the Third Proportional to 31,299 and 67,051

Step by Step Solution

1. Step 1: Write the proportion equation
   31,299 : 67,051 = 67,051 : x
2. Step 2: Convert to fraction form
   31,299/67,051 = 67,051/x
3. Step 3: Cross multiply
   31,299x = 67,051 × 67,051
4. Step 4: Simplify right side
   31,299x = 4,495,836,601
5. Step 5: Solve for x
   x = 4,495,836,601/31,299
6. Step 6: Final answer
   x = 143,641.54