Finding the Third Proportional to 27,730.48 and 42,891.40

Step by Step Solution

1. Step 1: Write the proportion equation
   27,730.48 : 42,891.40 = 42,891.40 : x
2. Step 2: Convert to fraction form
   27,730.48/42,891.40 = 42,891.40/x
3. Step 3: Cross multiply
   27,730.48x = 42,891.40 × 42,891.40
4. Step 4: Simplify right side
   27,730.48x = 1,839,672,059.92
5. Step 5: Solve for x
   x = 1,839,672,059.92/27,730.48
6. Step 6: Final answer
   x = 66,341.16