Finding the Third Proportional to 139,637 and 301,411

Step by Step Solution

1. Step 1: Write the proportion equation
   139,637 : 301,411 = 301,411 : x
2. Step 2: Convert to fraction form
   139,637/301,411 = 301,411/x
3. Step 3: Cross multiply
   139,637x = 301,411 × 301,411
4. Step 4: Simplify right side
   139,637x = 90,848,590,921
5. Step 5: Solve for x
   x = 90,848,590,921/139,637
6. Step 6: Final answer
   x = 650,605.43