Finding the Third Proportional to 172,392 and 365,308

Step by Step Solution

1. Step 1: Write the proportion equation
   172,392 : 365,308 = 365,308 : x
2. Step 2: Convert to fraction form
   172,392/365,308 = 365,308/x
3. Step 3: Cross multiply
   172,392x = 365,308 × 365,308
4. Step 4: Simplify right side
   172,392x = 133,449,934,864
5. Step 5: Solve for x
   x = 133,449,934,864/172,392
6. Step 6: Final answer
   x = 774,107.47