Finding the Third Proportional to 600,705 and 839,821.50

Step by Step Solution

1. Step 1: Write the proportion equation
   600,705 : 839,821.50 = 839,821.50 : x
2. Step 2: Convert to fraction form
   600,705/839,821.50 = 839,821.50/x
3. Step 3: Cross multiply
   600,705x = 839,821.50 × 839,821.50
4. Step 4: Simplify right side
   600,705x = 705,300,151,862.25
5. Step 5: Solve for x
   x = 705,300,151,862.25/600,705
6. Step 6: Final answer
   x = 1,174,120.66