Finding the Third Proportional to 541,733.50 and 839,990

Step by Step Solution

1. Step 1: Write the proportion equation
   541,733.50 : 839,990 = 839,990 : x
2. Step 2: Convert to fraction form
   541,733.50/839,990 = 839,990/x
3. Step 3: Cross multiply
   541,733.50x = 839,990 × 839,990
4. Step 4: Simplify right side
   541,733.50x = 705,583,200,100
5. Step 5: Solve for x
   x = 705,583,200,100/541,733.50
6. Step 6: Final answer
   x = 1,302,454.44