Finding the Third Proportional to 1,189,470 and 1,779,012

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,470 : 1,779,012 = 1,779,012 : x
2. Step 2: Convert to fraction form
   1,189,470/1,779,012 = 1,779,012/x
3. Step 3: Cross multiply
   1,189,470x = 1,779,012 × 1,779,012
4. Step 4: Simplify right side
   1,189,470x = 3,164,883,696,144
5. Step 5: Solve for x
   x = 3,164,883,696,144/1,189,470
6. Step 6: Final answer
   x = 2,660,751.17