Finding the Third Proportional to 1,209,212 and 1,807,499

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,212 : 1,807,499 = 1,807,499 : x
2. Step 2: Convert to fraction form
   1,209,212/1,807,499 = 1,807,499/x
3. Step 3: Cross multiply
   1,209,212x = 1,807,499 × 1,807,499
4. Step 4: Simplify right side
   1,209,212x = 3,267,052,635,001
5. Step 5: Solve for x
   x = 3,267,052,635,001/1,209,212
6. Step 6: Final answer
   x = 2,701,803.02