Finding the Third Proportional to 17,678.25 and 35,869.08

Step by Step Solution

1. Step 1: Write the proportion equation
   17,678.25 : 35,869.08 = 35,869.08 : x
2. Step 2: Convert to fraction form
   17,678.25/35,869.08 = 35,869.08/x
3. Step 3: Cross multiply
   17,678.25x = 35,869.08 × 35,869.08
4. Step 4: Simplify right side
   17,678.25x = 1,286,590,765.54
5. Step 5: Solve for x
   x = 1,286,590,765.54/17,678.25
6. Step 6: Final answer
   x = 72,778.17