Finding the Third Proportional to 169,538.06 and 260,389.69

Step by Step Solution

1. Step 1: Write the proportion equation
   169,538.06 : 260,389.69 = 260,389.69 : x
2. Step 2: Convert to fraction form
   169,538.06/260,389.69 = 260,389.69/x
3. Step 3: Cross multiply
   169,538.06x = 260,389.69 × 260,389.69
4. Step 4: Simplify right side
   169,538.06x = 67,802,789,356.35
5. Step 5: Solve for x
   x = 67,802,789,356.35/169,538.06
6. Step 6: Final answer
   x = 399,926.65