Finding the Third Proportional to 27,660 and 43,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   27,660 : 43,978.50 = 43,978.50 : x
2. Step 2: Convert to fraction form
   27,660/43,978.50 = 43,978.50/x
3. Step 3: Cross multiply
   27,660x = 43,978.50 × 43,978.50
4. Step 4: Simplify right side
   27,660x = 1,934,108,462.25
5. Step 5: Solve for x
   x = 1,934,108,462.25/27,660
6. Step 6: Final answer
   x = 69,924.38