Finding the Third Proportional to 139,488 and 302,592

Step by Step Solution

1. Step 1: Write the proportion equation
   139,488 : 302,592 = 302,592 : x
2. Step 2: Convert to fraction form
   139,488/302,592 = 302,592/x
3. Step 3: Cross multiply
   139,488x = 302,592 × 302,592
4. Step 4: Simplify right side
   139,488x = 91,561,918,464
5. Step 5: Solve for x
   x = 91,561,918,464/139,488
6. Step 6: Final answer
   x = 656,414.30