Finding the Third Proportional to 1,859.63 and 4,381.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.63 : 4,381.31 = 4,381.31 : x
2. Step 2: Convert to fraction form
   1,859.63/4,381.31 = 4,381.31/x
3. Step 3: Cross multiply
   1,859.63x = 4,381.31 × 4,381.31
4. Step 4: Simplify right side
   1,859.63x = 19,195,899.22
5. Step 5: Solve for x
   x = 19,195,899.22/1,859.63
6. Step 6: Final answer
   x = 10,322.46