Finding the Third Proportional to 123,156 and 263,160

Step by Step Solution

1. Step 1: Write the proportion equation
   123,156 : 263,160 = 263,160 : x
2. Step 2: Convert to fraction form
   123,156/263,160 = 263,160/x
3. Step 3: Cross multiply
   123,156x = 263,160 × 263,160
4. Step 4: Simplify right side
   123,156x = 69,253,185,600
5. Step 5: Solve for x
   x = 69,253,185,600/123,156
6. Step 6: Final answer
   x = 562,320.84