Finding the Third Proportional to 720,818 and 1,585,522

Step by Step Solution

1. Step 1: Write the proportion equation
   720,818 : 1,585,522 = 1,585,522 : x
2. Step 2: Convert to fraction form
   720,818/1,585,522 = 1,585,522/x
3. Step 3: Cross multiply
   720,818x = 1,585,522 × 1,585,522
4. Step 4: Simplify right side
   720,818x = 2,513,880,012,484
5. Step 5: Solve for x
   x = 2,513,880,012,484/720,818
6. Step 6: Final answer
   x = 3,487,537.79