Finding the Third Proportional to 141,446 and 308,140

Step by Step Solution

1. Step 1: Write the proportion equation
   141,446 : 308,140 = 308,140 : x
2. Step 2: Convert to fraction form
   141,446/308,140 = 308,140/x
3. Step 3: Cross multiply
   141,446x = 308,140 × 308,140
4. Step 4: Simplify right side
   141,446x = 94,950,259,600
5. Step 5: Solve for x
   x = 94,950,259,600/141,446
6. Step 6: Final answer
   x = 671,282.75