Finding the Third Proportional to 140,646 and 302,060

Step by Step Solution

1. Step 1: Write the proportion equation
   140,646 : 302,060 = 302,060 : x
2. Step 2: Convert to fraction form
   140,646/302,060 = 302,060/x
3. Step 3: Cross multiply
   140,646x = 302,060 × 302,060
4. Step 4: Simplify right side
   140,646x = 91,240,243,600
5. Step 5: Solve for x
   x = 91,240,243,600/140,646
6. Step 6: Final answer
   x = 648,722.63