Finding the Third Proportional to 1,662.19 and 4,375.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.19 : 4,375.69 = 4,375.69 : x
2. Step 2: Convert to fraction form
   1,662.19/4,375.69 = 4,375.69/x
3. Step 3: Cross multiply
   1,662.19x = 4,375.69 × 4,375.69
4. Step 4: Simplify right side
   1,662.19x = 19,146,641.10
5. Step 5: Solve for x
   x = 19,146,641.10/1,662.19
6. Step 6: Final answer
   x = 11,518.94