Finding the Third Proportional to 140,310 and 307,784

Step by Step Solution

1. Step 1: Write the proportion equation
   140,310 : 307,784 = 307,784 : x
2. Step 2: Convert to fraction form
   140,310/307,784 = 307,784/x
3. Step 3: Cross multiply
   140,310x = 307,784 × 307,784
4. Step 4: Simplify right side
   140,310x = 94,730,990,656
5. Step 5: Solve for x
   x = 94,730,990,656/140,310
6. Step 6: Final answer
   x = 675,154.95