Finding the Third Proportional to 855,126 and 1,858,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   855,126 : 1,858,099.50 = 1,858,099.50 : x
2. Step 2: Convert to fraction form
   855,126/1,858,099.50 = 1,858,099.50/x
3. Step 3: Cross multiply
   855,126x = 1,858,099.50 × 1,858,099.50
4. Step 4: Simplify right side
   855,126x = 3,452,533,751,900.25
5. Step 5: Solve for x
   x = 3,452,533,751,900.25/855,126
6. Step 6: Final answer
   x = 4,037,456.18