Finding the Third Proportional to 139,776 and 301,800

Step by Step Solution

1. Step 1: Write the proportion equation
   139,776 : 301,800 = 301,800 : x
2. Step 2: Convert to fraction form
   139,776/301,800 = 301,800/x
3. Step 3: Cross multiply
   139,776x = 301,800 × 301,800
4. Step 4: Simplify right side
   139,776x = 91,083,240,000
5. Step 5: Solve for x
   x = 91,083,240,000/139,776
6. Step 6: Final answer
   x = 651,637.19