Finding the Third Proportional to 361,777.50 and 787,842

Step by Step Solution

1. Step 1: Write the proportion equation
   361,777.50 : 787,842 = 787,842 : x
2. Step 2: Convert to fraction form
   361,777.50/787,842 = 787,842/x
3. Step 3: Cross multiply
   361,777.50x = 787,842 × 787,842
4. Step 4: Simplify right side
   361,777.50x = 620,695,016,964
5. Step 5: Solve for x
   x = 620,695,016,964/361,777.50
6. Step 6: Final answer
   x = 1,715,681.65