Finding the Third Proportional to 142,696 and 307,468

Step by Step Solution

1. Step 1: Write the proportion equation
   142,696 : 307,468 = 307,468 : x
2. Step 2: Convert to fraction form
   142,696/307,468 = 307,468/x
3. Step 3: Cross multiply
   142,696x = 307,468 × 307,468
4. Step 4: Simplify right side
   142,696x = 94,536,571,024
5. Step 5: Solve for x
   x = 94,536,571,024/142,696
6. Step 6: Final answer
   x = 662,503.30