Finding the Third Proportional to 139,300 and 301,928

Step by Step Solution

1. Step 1: Write the proportion equation
   139,300 : 301,928 = 301,928 : x
2. Step 2: Convert to fraction form
   139,300/301,928 = 301,928/x
3. Step 3: Cross multiply
   139,300x = 301,928 × 301,928
4. Step 4: Simplify right side
   139,300x = 91,160,517,184
5. Step 5: Solve for x
   x = 91,160,517,184/139,300
6. Step 6: Final answer
   x = 654,418.64