Finding the Third Proportional to 550,393.50 and 839,826

Step by Step Solution

1. Step 1: Write the proportion equation
   550,393.50 : 839,826 = 839,826 : x
2. Step 2: Convert to fraction form
   550,393.50/839,826 = 839,826/x
3. Step 3: Cross multiply
   550,393.50x = 839,826 × 839,826
4. Step 4: Simplify right side
   550,393.50x = 705,307,710,276
5. Step 5: Solve for x
   x = 705,307,710,276/550,393.50
6. Step 6: Final answer
   x = 1,281,460.83