Finding the Third Proportional to 42,136 and 91,028

Step by Step Solution

1. Step 1: Write the proportion equation
   42,136 : 91,028 = 91,028 : x
2. Step 2: Convert to fraction form
   42,136/91,028 = 91,028/x
3. Step 3: Cross multiply
   42,136x = 91,028 × 91,028
4. Step 4: Simplify right side
   42,136x = 8,286,096,784
5. Step 5: Solve for x
   x = 8,286,096,784/42,136
6. Step 6: Final answer
   x = 196,651.24