Finding the Third Proportional to 139,851 and 301,815

Step by Step Solution

1. Step 1: Write the proportion equation
   139,851 : 301,815 = 301,815 : x
2. Step 2: Convert to fraction form
   139,851/301,815 = 301,815/x
3. Step 3: Cross multiply
   139,851x = 301,815 × 301,815
4. Step 4: Simplify right side
   139,851x = 91,092,294,225
5. Step 5: Solve for x
   x = 91,092,294,225/139,851
6. Step 6: Final answer
   x = 651,352.47