Finding the Third Proportional to 1,209,216 and 1,807,505

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,216 : 1,807,505 = 1,807,505 : x
2. Step 2: Convert to fraction form
   1,209,216/1,807,505 = 1,807,505/x
3. Step 3: Cross multiply
   1,209,216x = 1,807,505 × 1,807,505
4. Step 4: Simplify right side
   1,209,216x = 3,267,074,325,025
5. Step 5: Solve for x
   x = 3,267,074,325,025/1,209,216
6. Step 6: Final answer
   x = 2,701,812.02