Finding the Third Proportional to 905,508 and 1,225,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   905,508 : 1,225,399.50 = 1,225,399.50 : x
2. Step 2: Convert to fraction form
   905,508/1,225,399.50 = 1,225,399.50/x
3. Step 3: Cross multiply
   905,508x = 1,225,399.50 × 1,225,399.50
4. Step 4: Simplify right side
   905,508x = 1,501,603,934,600.25
5. Step 5: Solve for x
   x = 1,501,603,934,600.25/905,508
6. Step 6: Final answer
   x = 1,658,300.02