Finding the Third Proportional to 742,286 and 1,626,438

Step by Step Solution

1. Step 1: Write the proportion equation
   742,286 : 1,626,438 = 1,626,438 : x
2. Step 2: Convert to fraction form
   742,286/1,626,438 = 1,626,438/x
3. Step 3: Cross multiply
   742,286x = 1,626,438 × 1,626,438
4. Step 4: Simplify right side
   742,286x = 2,645,300,567,844
5. Step 5: Solve for x
   x = 2,645,300,567,844/742,286
6. Step 6: Final answer
   x = 3,563,721.49