Finding the Third Proportional to 360,147 and 772,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   360,147 : 772,780.50 = 772,780.50 : x
2. Step 2: Convert to fraction form
   360,147/772,780.50 = 772,780.50/x
3. Step 3: Cross multiply
   360,147x = 772,780.50 × 772,780.50
4. Step 4: Simplify right side
   360,147x = 597,189,701,180.25
5. Step 5: Solve for x
   x = 597,189,701,180.25/360,147
6. Step 6: Final answer
   x = 1,658,183.19