Finding the Third Proportional to 31,194.25 and 67,643

Step by Step Solution

1. Step 1: Write the proportion equation
   31,194.25 : 67,643 = 67,643 : x
2. Step 2: Convert to fraction form
   31,194.25/67,643 = 67,643/x
3. Step 3: Cross multiply
   31,194.25x = 67,643 × 67,643
4. Step 4: Simplify right side
   31,194.25x = 4,575,575,449
5. Step 5: Solve for x
   x = 4,575,575,449/31,194.25
6. Step 6: Final answer
   x = 146,680.09