Finding the Third Proportional to 20,627 and 42,347

Step by Step Solution

1. Step 1: Write the proportion equation
   20,627 : 42,347 = 42,347 : x
2. Step 2: Convert to fraction form
   20,627/42,347 = 42,347/x
3. Step 3: Cross multiply
   20,627x = 42,347 × 42,347
4. Step 4: Simplify right side
   20,627x = 1,793,268,409
5. Step 5: Solve for x
   x = 1,793,268,409/20,627
6. Step 6: Final answer
   x = 86,937.92