Finding the Third Proportional to 1,658,140 and 2,560,490

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658,140 : 2,560,490 = 2,560,490 : x
2. Step 2: Convert to fraction form
   1,658,140/2,560,490 = 2,560,490/x
3. Step 3: Cross multiply
   1,658,140x = 2,560,490 × 2,560,490
4. Step 4: Simplify right side
   1,658,140x = 6,556,109,040,100
5. Step 5: Solve for x
   x = 6,556,109,040,100/1,658,140
6. Step 6: Final answer
   x = 3,953,893.54