Finding the Third Proportional to 606,558 and 1,298,320.50

Step by Step Solution

1. Step 1: Write the proportion equation
   606,558 : 1,298,320.50 = 1,298,320.50 : x
2. Step 2: Convert to fraction form
   606,558/1,298,320.50 = 1,298,320.50/x
3. Step 3: Cross multiply
   606,558x = 1,298,320.50 × 1,298,320.50
4. Step 4: Simplify right side
   606,558x = 1,685,636,120,720.25
5. Step 5: Solve for x
   x = 1,685,636,120,720.25/606,558
6. Step 6: Final answer
   x = 2,779,018.86