Finding the Third Proportional to 27,402.75 and 43,636.78

Step by Step Solution

1. Step 1: Write the proportion equation
   27,402.75 : 43,636.78 = 43,636.78 : x
2. Step 2: Convert to fraction form
   27,402.75/43,636.78 = 43,636.78/x
3. Step 3: Cross multiply
   27,402.75x = 43,636.78 × 43,636.78
4. Step 4: Simplify right side
   27,402.75x = 1,904,168,677.86
5. Step 5: Solve for x
   x = 1,904,168,677.86/27,402.75
6. Step 6: Final answer
   x = 69,488.23