Finding the Third Proportional to 30,061.76 and 64,324.76

Step by Step Solution

1. Step 1: Write the proportion equation
   30,061.76 : 64,324.76 = 64,324.76 : x
2. Step 2: Convert to fraction form
   30,061.76/64,324.76 = 64,324.76/x
3. Step 3: Cross multiply
   30,061.76x = 64,324.76 × 64,324.76
4. Step 4: Simplify right side
   30,061.76x = 4,137,674,467.64
5. Step 5: Solve for x
   x = 4,137,674,467.64/30,061.76
6. Step 6: Final answer
   x = 137,639.14