Finding the Third Proportional to 1,071,252 and 1,421,686

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,252 : 1,421,686 = 1,421,686 : x
2. Step 2: Convert to fraction form
   1,071,252/1,421,686 = 1,421,686/x
3. Step 3: Cross multiply
   1,071,252x = 1,421,686 × 1,421,686
4. Step 4: Simplify right side
   1,071,252x = 2,021,191,082,596
5. Step 5: Solve for x
   x = 2,021,191,082,596/1,071,252
6. Step 6: Final answer
   x = 1,886,755.95