Finding the Third Proportional to 590,414 and 1,222,840

Step by Step Solution

1. Step 1: Write the proportion equation
   590,414 : 1,222,840 = 1,222,840 : x
2. Step 2: Convert to fraction form
   590,414/1,222,840 = 1,222,840/x
3. Step 3: Cross multiply
   590,414x = 1,222,840 × 1,222,840
4. Step 4: Simplify right side
   590,414x = 1,495,337,665,600
5. Step 5: Solve for x
   x = 1,495,337,665,600/590,414
6. Step 6: Final answer
   x = 2,532,693.44