Finding the Third Proportional to 590,564 and 1,386,442

Step by Step Solution

1. Step 1: Write the proportion equation
   590,564 : 1,386,442 = 1,386,442 : x
2. Step 2: Convert to fraction form
   590,564/1,386,442 = 1,386,442/x
3. Step 3: Cross multiply
   590,564x = 1,386,442 × 1,386,442
4. Step 4: Simplify right side
   590,564x = 1,922,221,419,364
5. Step 5: Solve for x
   x = 1,922,221,419,364/590,564
6. Step 6: Final answer
   x = 3,254,890.95