Finding the Third Proportional to 30,609 and 45,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,609 : 45,769.50 = 45,769.50 : x
2. Step 2: Convert to fraction form
   30,609/45,769.50 = 45,769.50/x
3. Step 3: Cross multiply
   30,609x = 45,769.50 × 45,769.50
4. Step 4: Simplify right side
   30,609x = 2,094,847,130.25
5. Step 5: Solve for x
   x = 2,094,847,130.25/30,609
6. Step 6: Final answer
   x = 68,438.93