Finding the Third Proportional to 139,972 and 301,813

Step by Step Solution

1. Step 1: Write the proportion equation
   139,972 : 301,813 = 301,813 : x
2. Step 2: Convert to fraction form
   139,972/301,813 = 301,813/x
3. Step 3: Cross multiply
   139,972x = 301,813 × 301,813
4. Step 4: Simplify right side
   139,972x = 91,091,086,969
5. Step 5: Solve for x
   x = 91,091,086,969/139,972
6. Step 6: Final answer
   x = 650,780.78