Finding the Third Proportional to 30,436.50 and 61,710

Step by Step Solution

1. Step 1: Write the proportion equation
   30,436.50 : 61,710 = 61,710 : x
2. Step 2: Convert to fraction form
   30,436.50/61,710 = 61,710/x
3. Step 3: Cross multiply
   30,436.50x = 61,710 × 61,710
4. Step 4: Simplify right side
   30,436.50x = 3,808,124,100
5. Step 5: Solve for x
   x = 3,808,124,100/30,436.50
6. Step 6: Final answer
   x = 125,117.02