Finding the Third Proportional to 705,306 and 1,664,686.50

Step by Step Solution

1. Step 1: Write the proportion equation
   705,306 : 1,664,686.50 = 1,664,686.50 : x
2. Step 2: Convert to fraction form
   705,306/1,664,686.50 = 1,664,686.50/x
3. Step 3: Cross multiply
   705,306x = 1,664,686.50 × 1,664,686.50
4. Step 4: Simplify right side
   705,306x = 2,771,181,143,282.25
5. Step 5: Solve for x
   x = 2,771,181,143,282.25/705,306
6. Step 6: Final answer
   x = 3,929,048.02