Finding the Third Proportional to 1,640,740 and 2,518,566

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,740 : 2,518,566 = 2,518,566 : x
2. Step 2: Convert to fraction form
   1,640,740/2,518,566 = 2,518,566/x
3. Step 3: Cross multiply
   1,640,740x = 2,518,566 × 2,518,566
4. Step 4: Simplify right side
   1,640,740x = 6,343,174,696,356
5. Step 5: Solve for x
   x = 6,343,174,696,356/1,640,740
6. Step 6: Final answer
   x = 3,866,045.01