Finding the Third Proportional to 139,698 and 301,716

Step by Step Solution

1. Step 1: Write the proportion equation
   139,698 : 301,716 = 301,716 : x
2. Step 2: Convert to fraction form
   139,698/301,716 = 301,716/x
3. Step 3: Cross multiply
   139,698x = 301,716 × 301,716
4. Step 4: Simplify right side
   139,698x = 91,032,544,656
5. Step 5: Solve for x
   x = 91,032,544,656/139,698
6. Step 6: Final answer
   x = 651,638.14