Finding the Third Proportional to 27,388 and 42,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   27,388 : 42,243.50 = 42,243.50 : x
2. Step 2: Convert to fraction form
   27,388/42,243.50 = 42,243.50/x
3. Step 3: Cross multiply
   27,388x = 42,243.50 × 42,243.50
4. Step 4: Simplify right side
   27,388x = 1,784,513,292.25
5. Step 5: Solve for x
   x = 1,784,513,292.25/27,388
6. Step 6: Final answer
   x = 65,156.76