Finding the Third Proportional to 70,123.50 and 154,267.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,123.50 : 154,267.50 = 154,267.50 : x
2. Step 2: Convert to fraction form
   70,123.50/154,267.50 = 154,267.50/x
3. Step 3: Cross multiply
   70,123.50x = 154,267.50 × 154,267.50
4. Step 4: Simplify right side
   70,123.50x = 23,798,461,556.25
5. Step 5: Solve for x
   x = 23,798,461,556.25/70,123.50
6. Step 6: Final answer
   x = 339,379.26