Finding the Third Proportional to 30,865.50 and 63,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,865.50 : 63,022.50 = 63,022.50 : x
2. Step 2: Convert to fraction form
   30,865.50/63,022.50 = 63,022.50/x
3. Step 3: Cross multiply
   30,865.50x = 63,022.50 × 63,022.50
4. Step 4: Simplify right side
   30,865.50x = 3,971,835,506.25
5. Step 5: Solve for x
   x = 3,971,835,506.25/30,865.50
6. Step 6: Final answer
   x = 128,682.04