Finding the Third Proportional to 30,466.13 and 64,774.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,466.13 : 64,774.69 = 64,774.69 : x
2. Step 2: Convert to fraction form
   30,466.13/64,774.69 = 64,774.69/x
3. Step 3: Cross multiply
   30,466.13x = 64,774.69 × 64,774.69
4. Step 4: Simplify right side
   30,466.13x = 4,195,760,140.72
5. Step 5: Solve for x
   x = 4,195,760,140.72/30,466.13
6. Step 6: Final answer
   x = 137,718.86