Finding the Third Proportional to 590,408 and 1,222,828

Step by Step Solution

1. Step 1: Write the proportion equation
   590,408 : 1,222,828 = 1,222,828 : x
2. Step 2: Convert to fraction form
   590,408/1,222,828 = 1,222,828/x
3. Step 3: Cross multiply
   590,408x = 1,222,828 × 1,222,828
4. Step 4: Simplify right side
   590,408x = 1,495,308,317,584
5. Step 5: Solve for x
   x = 1,495,308,317,584/590,408
6. Step 6: Final answer
   x = 2,532,669.47