Finding the Third Proportional to 137,120 and 300,472

Step by Step Solution

1. Step 1: Write the proportion equation
   137,120 : 300,472 = 300,472 : x
2. Step 2: Convert to fraction form
   137,120/300,472 = 300,472/x
3. Step 3: Cross multiply
   137,120x = 300,472 × 300,472
4. Step 4: Simplify right side
   137,120x = 90,283,422,784
5. Step 5: Solve for x
   x = 90,283,422,784/137,120
6. Step 6: Final answer
   x = 658,426.36