Finding the Third Proportional to 19,478 and 42,641

Step by Step Solution

1. Step 1: Write the proportion equation
   19,478 : 42,641 = 42,641 : x
2. Step 2: Convert to fraction form
   19,478/42,641 = 42,641/x
3. Step 3: Cross multiply
   19,478x = 42,641 × 42,641
4. Step 4: Simplify right side
   19,478x = 1,818,254,881
5. Step 5: Solve for x
   x = 1,818,254,881/19,478
6. Step 6: Final answer
   x = 93,349.16