Finding the Third Proportional to 30,025.69 and 64,981.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,025.69 : 64,981.69 = 64,981.69 : x
2. Step 2: Convert to fraction form
   30,025.69/64,981.69 = 64,981.69/x
3. Step 3: Cross multiply
   30,025.69x = 64,981.69 × 64,981.69
4. Step 4: Simplify right side
   30,025.69x = 4,222,619,710.35
5. Step 5: Solve for x
   x = 4,222,619,710.35/30,025.69
6. Step 6: Final answer
   x = 140,633.57