Finding the Third Proportional to 42,434 and 62,409

Step by Step Solution

1. Step 1: Write the proportion equation
   42,434 : 62,409 = 62,409 : x
2. Step 2: Convert to fraction form
   42,434/62,409 = 62,409/x
3. Step 3: Cross multiply
   42,434x = 62,409 × 62,409
4. Step 4: Simplify right side
   42,434x = 3,894,883,281
5. Step 5: Solve for x
   x = 3,894,883,281/42,434
6. Step 6: Final answer
   x = 91,786.85