Finding the Third Proportional to 77,920.50 and 168,294

Step by Step Solution

1. Step 1: Write the proportion equation
   77,920.50 : 168,294 = 168,294 : x
2. Step 2: Convert to fraction form
   77,920.50/168,294 = 168,294/x
3. Step 3: Cross multiply
   77,920.50x = 168,294 × 168,294
4. Step 4: Simplify right side
   77,920.50x = 28,322,870,436
5. Step 5: Solve for x
   x = 28,322,870,436/77,920.50
6. Step 6: Final answer
   x = 363,484.20