Finding the Third Proportional to 151,466 and 318,600.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,466 : 318,600.50 = 318,600.50 : x
2. Step 2: Convert to fraction form
   151,466/318,600.50 = 318,600.50/x
3. Step 3: Cross multiply
   151,466x = 318,600.50 × 318,600.50
4. Step 4: Simplify right side
   151,466x = 101,506,278,600.25
5. Step 5: Solve for x
   x = 101,506,278,600.25/151,466
6. Step 6: Final answer
   x = 670,158.84