Finding the Third Proportional to 139,761 and 301,770

Step by Step Solution

1. Step 1: Write the proportion equation
   139,761 : 301,770 = 301,770 : x
2. Step 2: Convert to fraction form
   139,761/301,770 = 301,770/x
3. Step 3: Cross multiply
   139,761x = 301,770 × 301,770
4. Step 4: Simplify right side
   139,761x = 91,065,132,900
5. Step 5: Solve for x
   x = 91,065,132,900/139,761
6. Step 6: Final answer
   x = 651,577.57