Finding the Third Proportional to 42,993 and 90,810

Step by Step Solution

1. Step 1: Write the proportion equation
   42,993 : 90,810 = 90,810 : x
2. Step 2: Convert to fraction form
   42,993/90,810 = 90,810/x
3. Step 3: Cross multiply
   42,993x = 90,810 × 90,810
4. Step 4: Simplify right side
   42,993x = 8,246,456,100
5. Step 5: Solve for x
   x = 8,246,456,100/42,993
6. Step 6: Final answer
   x = 191,809.27