Finding the Third Proportional to 30,586.50 and 45,311.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,586.50 : 45,311.25 = 45,311.25 : x
2. Step 2: Convert to fraction form
   30,586.50/45,311.25 = 45,311.25/x
3. Step 3: Cross multiply
   30,586.50x = 45,311.25 × 45,311.25
4. Step 4: Simplify right side
   30,586.50x = 2,053,109,376.56
5. Step 5: Solve for x
   x = 2,053,109,376.56/30,586.50
6. Step 6: Final answer
   x = 67,124.69