Finding the Third Proportional to 77,773.50 and 169,615.69

Step by Step Solution

1. Step 1: Write the proportion equation
   77,773.50 : 169,615.69 = 169,615.69 : x
2. Step 2: Convert to fraction form
   77,773.50/169,615.69 = 169,615.69/x
3. Step 3: Cross multiply
   77,773.50x = 169,615.69 × 169,615.69
4. Step 4: Simplify right side
   77,773.50x = 28,769,481,446.10
5. Step 5: Solve for x
   x = 28,769,481,446.10/77,773.50
6. Step 6: Final answer
   x = 369,913.68