Finding the Third Proportional to 139,696 and 301,712

Step by Step Solution

1. Step 1: Write the proportion equation
   139,696 : 301,712 = 301,712 : x
2. Step 2: Convert to fraction form
   139,696/301,712 = 301,712/x
3. Step 3: Cross multiply
   139,696x = 301,712 × 301,712
4. Step 4: Simplify right side
   139,696x = 91,030,130,944
5. Step 5: Solve for x
   x = 91,030,130,944/139,696
6. Step 6: Final answer
   x = 651,630.19