Finding the Third Proportional to 1,214,172 and 1,781,892

Step by Step Solution

1. Step 1: Write the proportion equation
   1,214,172 : 1,781,892 = 1,781,892 : x
2. Step 2: Convert to fraction form
   1,214,172/1,781,892 = 1,781,892/x
3. Step 3: Cross multiply
   1,214,172x = 1,781,892 × 1,781,892
4. Step 4: Simplify right side
   1,214,172x = 3,175,139,099,664
5. Step 5: Solve for x
   x = 3,175,139,099,664/1,214,172
6. Step 6: Final answer
   x = 2,615,065.33