Finding the Third Proportional to 361,636 and 787,562.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,636 : 787,562.50 = 787,562.50 : x
2. Step 2: Convert to fraction form
   361,636/787,562.50 = 787,562.50/x
3. Step 3: Cross multiply
   361,636x = 787,562.50 × 787,562.50
4. Step 4: Simplify right side
   361,636x = 620,254,691,406.25
5. Step 5: Solve for x
   x = 620,254,691,406.25/361,636
6. Step 6: Final answer
   x = 1,715,135.36