Finding the Third Proportional to 140,484 and 307,196

Step by Step Solution

1. Step 1: Write the proportion equation
   140,484 : 307,196 = 307,196 : x
2. Step 2: Convert to fraction form
   140,484/307,196 = 307,196/x
3. Step 3: Cross multiply
   140,484x = 307,196 × 307,196
4. Step 4: Simplify right side
   140,484x = 94,369,382,416
5. Step 5: Solve for x
   x = 94,369,382,416/140,484
6. Step 6: Final answer
   x = 671,744.70