Finding the Third Proportional to 77,492 and 168,040

Step by Step Solution

1. Step 1: Write the proportion equation
   77,492 : 168,040 = 168,040 : x
2. Step 2: Convert to fraction form
   77,492/168,040 = 168,040/x
3. Step 3: Cross multiply
   77,492x = 168,040 × 168,040
4. Step 4: Simplify right side
   77,492x = 28,237,441,600
5. Step 5: Solve for x
   x = 28,237,441,600/77,492
6. Step 6: Final answer
   x = 364,391.70