Finding the Third Proportional to 1,580,218 and 3,400,265

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580,218 : 3,400,265 = 3,400,265 : x
2. Step 2: Convert to fraction form
   1,580,218/3,400,265 = 3,400,265/x
3. Step 3: Cross multiply
   1,580,218x = 3,400,265 × 3,400,265
4. Step 4: Simplify right side
   1,580,218x = 11,561,802,070,225
5. Step 5: Solve for x
   x = 11,561,802,070,225/1,580,218
6. Step 6: Final answer
   x = 7,316,586.74