Finding the Third Proportional to 69,740 and 152,440

Step by Step Solution

1. Step 1: Write the proportion equation
   69,740 : 152,440 = 152,440 : x
2. Step 2: Convert to fraction form
   69,740/152,440 = 152,440/x
3. Step 3: Cross multiply
   69,740x = 152,440 × 152,440
4. Step 4: Simplify right side
   69,740x = 23,237,953,600
5. Step 5: Solve for x
   x = 23,237,953,600/69,740
6. Step 6: Final answer
   x = 333,208.40