Finding the Third Proportional to 361,108.50 and 780,036

Step by Step Solution

1. Step 1: Write the proportion equation
   361,108.50 : 780,036 = 780,036 : x
2. Step 2: Convert to fraction form
   361,108.50/780,036 = 780,036/x
3. Step 3: Cross multiply
   361,108.50x = 780,036 × 780,036
4. Step 4: Simplify right side
   361,108.50x = 608,456,161,296
5. Step 5: Solve for x
   x = 608,456,161,296/361,108.50
6. Step 6: Final answer
   x = 1,684,967.71