Finding the Third Proportional to 705,123 and 1,074,217.50

Step by Step Solution

1. Step 1: Write the proportion equation
   705,123 : 1,074,217.50 = 1,074,217.50 : x
2. Step 2: Convert to fraction form
   705,123/1,074,217.50 = 1,074,217.50/x
3. Step 3: Cross multiply
   705,123x = 1,074,217.50 × 1,074,217.50
4. Step 4: Simplify right side
   705,123x = 1,153,943,237,306.25
5. Step 5: Solve for x
   x = 1,153,943,237,306.25/705,123
6. Step 6: Final answer
   x = 1,636,513.40