Finding the Third Proportional to 42,947 and 63,138

Step by Step Solution

1. Step 1: Write the proportion equation
   42,947 : 63,138 = 63,138 : x
2. Step 2: Convert to fraction form
   42,947/63,138 = 63,138/x
3. Step 3: Cross multiply
   42,947x = 63,138 × 63,138
4. Step 4: Simplify right side
   42,947x = 3,986,407,044
5. Step 5: Solve for x
   x = 3,986,407,044/42,947
6. Step 6: Final answer
   x = 92,821.55