Finding the Third Proportional to 31,412.25 and 68,364.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,412.25 : 68,364.75 = 68,364.75 : x
2. Step 2: Convert to fraction form
   31,412.25/68,364.75 = 68,364.75/x
3. Step 3: Cross multiply
   31,412.25x = 68,364.75 × 68,364.75
4. Step 4: Simplify right side
   31,412.25x = 4,673,739,042.56
5. Step 5: Solve for x
   x = 4,673,739,042.56/31,412.25
6. Step 6: Final answer
   x = 148,787.15