Finding the Third Proportional to 12,775.50 and 30,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,775.50 : 30,913.50 = 30,913.50 : x
2. Step 2: Convert to fraction form
   12,775.50/30,913.50 = 30,913.50/x
3. Step 3: Cross multiply
   12,775.50x = 30,913.50 × 30,913.50
4. Step 4: Simplify right side
   12,775.50x = 955,644,482.25
5. Step 5: Solve for x
   x = 955,644,482.25/12,775.50
6. Step 6: Final answer
   x = 74,802.90