Finding the Third Proportional to 138,467 and 300,262

Step by Step Solution

1. Step 1: Write the proportion equation
   138,467 : 300,262 = 300,262 : x
2. Step 2: Convert to fraction form
   138,467/300,262 = 300,262/x
3. Step 3: Cross multiply
   138,467x = 300,262 × 300,262
4. Step 4: Simplify right side
   138,467x = 90,157,268,644
5. Step 5: Solve for x
   x = 90,157,268,644/138,467
6. Step 6: Final answer
   x = 651,110.15