Finding the Third Proportional to 40,368.38 and 64,855.69

Step by Step Solution

1. Step 1: Write the proportion equation
   40,368.38 : 64,855.69 = 64,855.69 : x
2. Step 2: Convert to fraction form
   40,368.38/64,855.69 = 64,855.69/x
3. Step 3: Cross multiply
   40,368.38x = 64,855.69 × 64,855.69
4. Step 4: Simplify right side
   40,368.38x = 4,206,260,201.10
5. Step 5: Solve for x
   x = 4,206,260,201.10/40,368.38
6. Step 6: Final answer
   x = 104,196.92