Finding the Third Proportional to 112,702 and 263,404

Step by Step Solution

1. Step 1: Write the proportion equation
   112,702 : 263,404 = 263,404 : x
2. Step 2: Convert to fraction form
   112,702/263,404 = 263,404/x
3. Step 3: Cross multiply
   112,702x = 263,404 × 263,404
4. Step 4: Simplify right side
   112,702x = 69,381,667,216
5. Step 5: Solve for x
   x = 69,381,667,216/112,702
6. Step 6: Final answer
   x = 615,620.55