Finding the Third Proportional to 10,407.38 and 15,870.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,407.38 : 15,870.38 = 15,870.38 : x
2. Step 2: Convert to fraction form
   10,407.38/15,870.38 = 15,870.38/x
3. Step 3: Cross multiply
   10,407.38x = 15,870.38 × 15,870.38
4. Step 4: Simplify right side
   10,407.38x = 251,868,802.64
5. Step 5: Solve for x
   x = 251,868,802.64/10,407.38
6. Step 6: Final answer
   x = 24,200.99