Finding the Third Proportional to 1,810,915.31 and 3,936,331.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,810,915.31 : 3,936,331.69 = 3,936,331.69 : x
2. Step 2: Convert to fraction form
   1,810,915.31/3,936,331.69 = 3,936,331.69/x
3. Step 3: Cross multiply
   1,810,915.31x = 3,936,331.69 × 3,936,331.69
4. Step 4: Simplify right side
   1,810,915.31x = 15,494,707,154,016.60
5. Step 5: Solve for x
   x = 15,494,707,154,016.60/1,810,915.31
6. Step 6: Final answer
   x = 8,556,284.80