Finding the Third Proportional to 137,980 and 301,790

Step by Step Solution

1. Step 1: Write the proportion equation
   137,980 : 301,790 = 301,790 : x
2. Step 2: Convert to fraction form
   137,980/301,790 = 301,790/x
3. Step 3: Cross multiply
   137,980x = 301,790 × 301,790
4. Step 4: Simplify right side
   137,980x = 91,077,204,100
5. Step 5: Solve for x
   x = 91,077,204,100/137,980
6. Step 6: Final answer
   x = 660,075.40