Finding the Third Proportional to 34,576.50 and 70,421.25

Step by Step Solution

1. Step 1: Write the proportion equation
   34,576.50 : 70,421.25 = 70,421.25 : x
2. Step 2: Convert to fraction form
   34,576.50/70,421.25 = 70,421.25/x
3. Step 3: Cross multiply
   34,576.50x = 70,421.25 × 70,421.25
4. Step 4: Simplify right side
   34,576.50x = 4,959,152,451.56
5. Step 5: Solve for x
   x = 4,959,152,451.56/34,576.50
6. Step 6: Final answer
   x = 143,425.52