Finding the Third Proportional to 315,135 and 453,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   315,135 : 453,019.50 = 453,019.50 : x
2. Step 2: Convert to fraction form
   315,135/453,019.50 = 453,019.50/x
3. Step 3: Cross multiply
   315,135x = 453,019.50 × 453,019.50
4. Step 4: Simplify right side
   315,135x = 205,226,667,380.25
5. Step 5: Solve for x
   x = 205,226,667,380.25/315,135
6. Step 6: Final answer
   x = 651,234.13