Finding the Third Proportional to 492,149 and 771,017.50

Step by Step Solution

1. Step 1: Write the proportion equation
   492,149 : 771,017.50 = 771,017.50 : x
2. Step 2: Convert to fraction form
   492,149/771,017.50 = 771,017.50/x
3. Step 3: Cross multiply
   492,149x = 771,017.50 × 771,017.50
4. Step 4: Simplify right side
   492,149x = 594,467,985,306.25
5. Step 5: Solve for x
   x = 594,467,985,306.25/492,149
6. Step 6: Final answer
   x = 1,207,902.45