Finding the Third Proportional to 140,446 and 307,167.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,446 : 307,167.50 = 307,167.50 : x
2. Step 2: Convert to fraction form
   140,446/307,167.50 = 307,167.50/x
3. Step 3: Cross multiply
   140,446x = 307,167.50 × 307,167.50
4. Step 4: Simplify right side
   140,446x = 94,351,873,056.25
5. Step 5: Solve for x
   x = 94,351,873,056.25/140,446
6. Step 6: Final answer
   x = 671,801.78