Finding the Third Proportional to 70,258.50 and 107,136

Step by Step Solution

1. Step 1: Write the proportion equation
   70,258.50 : 107,136 = 107,136 : x
2. Step 2: Convert to fraction form
   70,258.50/107,136 = 107,136/x
3. Step 3: Cross multiply
   70,258.50x = 107,136 × 107,136
4. Step 4: Simplify right side
   70,258.50x = 11,478,122,496
5. Step 5: Solve for x
   x = 11,478,122,496/70,258.50
6. Step 6: Final answer
   x = 163,369.88