Finding the Third Proportional to 42,993 and 65,411

Step by Step Solution

1. Step 1: Write the proportion equation
   42,993 : 65,411 = 65,411 : x
2. Step 2: Convert to fraction form
   42,993/65,411 = 65,411/x
3. Step 3: Cross multiply
   42,993x = 65,411 × 65,411
4. Step 4: Simplify right side
   42,993x = 4,278,598,921
5. Step 5: Solve for x
   x = 4,278,598,921/42,993
6. Step 6: Final answer
   x = 99,518.50