Finding the Third Proportional to 139,849 and 301,810

Step by Step Solution

1. Step 1: Write the proportion equation
   139,849 : 301,810 = 301,810 : x
2. Step 2: Convert to fraction form
   139,849/301,810 = 301,810/x
3. Step 3: Cross multiply
   139,849x = 301,810 × 301,810
4. Step 4: Simplify right side
   139,849x = 91,089,276,100
5. Step 5: Solve for x
   x = 91,089,276,100/139,849
6. Step 6: Final answer
   x = 651,340.20