Finding the Third Proportional to 361,872 and 771,835.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,872 : 771,835.50 = 771,835.50 : x
2. Step 2: Convert to fraction form
   361,872/771,835.50 = 771,835.50/x
3. Step 3: Cross multiply
   361,872x = 771,835.50 × 771,835.50
4. Step 4: Simplify right side
   361,872x = 595,730,039,060.25
5. Step 5: Solve for x
   x = 595,730,039,060.25/361,872
6. Step 6: Final answer
   x = 1,646,245.19