Finding the Third Proportional to 142,140 and 307,044

Step by Step Solution

1. Step 1: Write the proportion equation
   142,140 : 307,044 = 307,044 : x
2. Step 2: Convert to fraction form
   142,140/307,044 = 307,044/x
3. Step 3: Cross multiply
   142,140x = 307,044 × 307,044
4. Step 4: Simplify right side
   142,140x = 94,276,017,936
5. Step 5: Solve for x
   x = 94,276,017,936/142,140
6. Step 6: Final answer
   x = 663,261.70