Finding the Third Proportional to 139,446 and 301,248

Step by Step Solution

1. Step 1: Write the proportion equation
   139,446 : 301,248 = 301,248 : x
2. Step 2: Convert to fraction form
   139,446/301,248 = 301,248/x
3. Step 3: Cross multiply
   139,446x = 301,248 × 301,248
4. Step 4: Simplify right side
   139,446x = 90,750,357,504
5. Step 5: Solve for x
   x = 90,750,357,504/139,446
6. Step 6: Final answer
   x = 650,792.12