Finding the Third Proportional to 363,519.56 and 776,521.69

Step by Step Solution

1. Step 1: Write the proportion equation
   363,519.56 : 776,521.69 = 776,521.69 : x
2. Step 2: Convert to fraction form
   363,519.56/776,521.69 = 776,521.69/x
3. Step 3: Cross multiply
   363,519.56x = 776,521.69 × 776,521.69
4. Step 4: Simplify right side
   363,519.56x = 602,985,931,157.85
5. Step 5: Solve for x
   x = 602,985,931,157.85/363,519.56
6. Step 6: Final answer
   x = 1,658,744.10