Finding the Third Proportional to 129,061.69 and 276,806.32

Step by Step Solution

1. Step 1: Write the proportion equation
   129,061.69 : 276,806.32 = 276,806.32 : x
2. Step 2: Convert to fraction form
   129,061.69/276,806.32 = 276,806.32/x
3. Step 3: Cross multiply
   129,061.69x = 276,806.32 × 276,806.32
4. Step 4: Simplify right side
   129,061.69x = 76,621,738,964.95
5. Step 5: Solve for x
   x = 76,621,738,964.95/129,061.69
6. Step 6: Final answer
   x = 593,683.07