Finding the Third Proportional to 1,840.88 and 3,929.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,840.88 : 3,929.81 = 3,929.81 : x
2. Step 2: Convert to fraction form
   1,840.88/3,929.81 = 3,929.81/x
3. Step 3: Cross multiply
   1,840.88x = 3,929.81 × 3,929.81
4. Step 4: Simplify right side
   1,840.88x = 15,443,426.29
5. Step 5: Solve for x
   x = 15,443,426.29/1,840.88
6. Step 6: Final answer
   x = 8,389.18