Finding the Third Proportional to 31,416.75 and 67,752.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,416.75 : 67,752.56 = 67,752.56 : x
2. Step 2: Convert to fraction form
   31,416.75/67,752.56 = 67,752.56/x
3. Step 3: Cross multiply
   31,416.75x = 67,752.56 × 67,752.56
4. Step 4: Simplify right side
   31,416.75x = 4,590,409,725.32
5. Step 5: Solve for x
   x = 4,590,409,725.32/31,416.75
6. Step 6: Final answer
   x = 146,113.45