Finding the Third Proportional to 139,778 and 301,804

Step by Step Solution

1. Step 1: Write the proportion equation
   139,778 : 301,804 = 301,804 : x
2. Step 2: Convert to fraction form
   139,778/301,804 = 301,804/x
3. Step 3: Cross multiply
   139,778x = 301,804 × 301,804
4. Step 4: Simplify right side
   139,778x = 91,085,654,416
5. Step 5: Solve for x
   x = 91,085,654,416/139,778
6. Step 6: Final answer
   x = 651,645.14