Finding the Third Proportional to 1,226,720 and 1,914,672

Step by Step Solution

1. Step 1: Write the proportion equation
   1,226,720 : 1,914,672 = 1,914,672 : x
2. Step 2: Convert to fraction form
   1,226,720/1,914,672 = 1,914,672/x
3. Step 3: Cross multiply
   1,226,720x = 1,914,672 × 1,914,672
4. Step 4: Simplify right side
   1,226,720x = 3,665,968,867,584
5. Step 5: Solve for x
   x = 3,665,968,867,584/1,226,720
6. Step 6: Final answer
   x = 2,988,431.65