Finding the Third Proportional to 112,422 and 248,648

Step by Step Solution

1. Step 1: Write the proportion equation
   112,422 : 248,648 = 248,648 : x
2. Step 2: Convert to fraction form
   112,422/248,648 = 248,648/x
3. Step 3: Cross multiply
   112,422x = 248,648 × 248,648
4. Step 4: Simplify right side
   112,422x = 61,825,827,904
5. Step 5: Solve for x
   x = 61,825,827,904/112,422
6. Step 6: Final answer
   x = 549,944.21