Finding the Third Proportional to 1,899.47 and 4,145.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,899.47 : 4,145.72 = 4,145.72 : x
2. Step 2: Convert to fraction form
   1,899.47/4,145.72 = 4,145.72/x
3. Step 3: Cross multiply
   1,899.47x = 4,145.72 × 4,145.72
4. Step 4: Simplify right side
   1,899.47x = 17,186,983.95
5. Step 5: Solve for x
   x = 17,186,983.95/1,899.47
6. Step 6: Final answer
   x = 9,048.31