Finding the Third Proportional to 12,772.50 and 27,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,772.50 : 27,892.50 = 27,892.50 : x
2. Step 2: Convert to fraction form
   12,772.50/27,892.50 = 27,892.50/x
3. Step 3: Cross multiply
   12,772.50x = 27,892.50 × 27,892.50
4. Step 4: Simplify right side
   12,772.50x = 777,991,556.25
5. Step 5: Solve for x
   x = 777,991,556.25/12,772.50
6. Step 6: Final answer
   x = 60,911.45