Finding the Third Proportional to 152,820 and 336,087

Step by Step Solution

1. Step 1: Write the proportion equation
   152,820 : 336,087 = 336,087 : x
2. Step 2: Convert to fraction form
   152,820/336,087 = 336,087/x
3. Step 3: Cross multiply
   152,820x = 336,087 × 336,087
4. Step 4: Simplify right side
   152,820x = 112,954,471,569
5. Step 5: Solve for x
   x = 112,954,471,569/152,820
6. Step 6: Final answer
   x = 739,134.09