Finding the Third Proportional to 163,969.59 and 353,089.69

Step by Step Solution

1. Step 1: Write the proportion equation
   163,969.59 : 353,089.69 = 353,089.69 : x
2. Step 2: Convert to fraction form
   163,969.59/353,089.69 = 353,089.69/x
3. Step 3: Cross multiply
   163,969.59x = 353,089.69 × 353,089.69
4. Step 4: Simplify right side
   163,969.59x = 124,672,327,418.85
5. Step 5: Solve for x
   x = 124,672,327,418.85/163,969.59
6. Step 6: Final answer
   x = 760,338.09