Finding the Third Proportional to 19,947 and 42,486

Step by Step Solution

1. Step 1: Write the proportion equation
   19,947 : 42,486 = 42,486 : x
2. Step 2: Convert to fraction form
   19,947/42,486 = 42,486/x
3. Step 3: Cross multiply
   19,947x = 42,486 × 42,486
4. Step 4: Simplify right side
   19,947x = 1,805,060,196
5. Step 5: Solve for x
   x = 1,805,060,196/19,947
6. Step 6: Final answer
   x = 90,492.82