Finding the Third Proportional to 64,092 and 139,000

Step by Step Solution

1. Step 1: Write the proportion equation
   64,092 : 139,000 = 139,000 : x
2. Step 2: Convert to fraction form
   64,092/139,000 = 139,000/x
3. Step 3: Cross multiply
   64,092x = 139,000 × 139,000
4. Step 4: Simplify right side
   64,092x = 19,321,000,000
5. Step 5: Solve for x
   x = 19,321,000,000/64,092
6. Step 6: Final answer
   x = 301,457.28