Finding the Third Proportional to 1,286,370 and 1,891,015

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,370 : 1,891,015 = 1,891,015 : x
2. Step 2: Convert to fraction form
   1,286,370/1,891,015 = 1,891,015/x
3. Step 3: Cross multiply
   1,286,370x = 1,891,015 × 1,891,015
4. Step 4: Simplify right side
   1,286,370x = 3,575,937,730,225
5. Step 5: Solve for x
   x = 3,575,937,730,225/1,286,370
6. Step 6: Final answer
   x = 2,779,867.17