Finding the Third Proportional to 1,272,645 and 1,780,181

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,645 : 1,780,181 = 1,780,181 : x
2. Step 2: Convert to fraction form
   1,272,645/1,780,181 = 1,780,181/x
3. Step 3: Cross multiply
   1,272,645x = 1,780,181 × 1,780,181
4. Step 4: Simplify right side
   1,272,645x = 3,169,044,392,761
5. Step 5: Solve for x
   x = 3,169,044,392,761/1,272,645
6. Step 6: Final answer
   x = 2,490,124.42