Finding the Third Proportional to 42,345 and 91,386

Step by Step Solution

1. Step 1: Write the proportion equation
   42,345 : 91,386 = 91,386 : x
2. Step 2: Convert to fraction form
   42,345/91,386 = 91,386/x
3. Step 3: Cross multiply
   42,345x = 91,386 × 91,386
4. Step 4: Simplify right side
   42,345x = 8,351,400,996
5. Step 5: Solve for x
   x = 8,351,400,996/42,345
6. Step 6: Final answer
   x = 197,222.84