Finding the Third Proportional to 1,907.15 and 2,915.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,907.15 : 2,915.69 = 2,915.69 : x
2. Step 2: Convert to fraction form
   1,907.15/2,915.69 = 2,915.69/x
3. Step 3: Cross multiply
   1,907.15x = 2,915.69 × 2,915.69
4. Step 4: Simplify right side
   1,907.15x = 8,501,239.65
5. Step 5: Solve for x
   x = 8,501,239.65/1,907.15
6. Step 6: Final answer
   x = 4,457.56