Finding the Third Proportional to 367,399 and 520,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   367,399 : 520,012.50 = 520,012.50 : x
2. Step 2: Convert to fraction form
   367,399/520,012.50 = 520,012.50/x
3. Step 3: Cross multiply
   367,399x = 520,012.50 × 520,012.50
4. Step 4: Simplify right side
   367,399x = 270,413,000,156.25
5. Step 5: Solve for x
   x = 270,413,000,156.25/367,399
6. Step 6: Final answer
   x = 736,019.97