Finding the Third Proportional to 1,993,470 and 2,989,590

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993,470 : 2,989,590 = 2,989,590 : x
2. Step 2: Convert to fraction form
   1,993,470/2,989,590 = 2,989,590/x
3. Step 3: Cross multiply
   1,993,470x = 2,989,590 × 2,989,590
4. Step 4: Simplify right side
   1,993,470x = 8,937,648,368,100
5. Step 5: Solve for x
   x = 8,937,648,368,100/1,993,470
6. Step 6: Final answer
   x = 4,483,462.69