Finding the Third Proportional to 30,227.50 and 64,613

Step by Step Solution

1. Step 1: Write the proportion equation
   30,227.50 : 64,613 = 64,613 : x
2. Step 2: Convert to fraction form
   30,227.50/64,613 = 64,613/x
3. Step 3: Cross multiply
   30,227.50x = 64,613 × 64,613
4. Step 4: Simplify right side
   30,227.50x = 4,174,839,769
5. Step 5: Solve for x
   x = 4,174,839,769/30,227.50
6. Step 6: Final answer
   x = 138,113.96