Finding the Third Proportional to 141,666 and 308,254.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,666 : 308,254.50 = 308,254.50 : x
2. Step 2: Convert to fraction form
   141,666/308,254.50 = 308,254.50/x
3. Step 3: Cross multiply
   141,666x = 308,254.50 × 308,254.50
4. Step 4: Simplify right side
   141,666x = 95,020,836,770.25
5. Step 5: Solve for x
   x = 95,020,836,770.25/141,666
6. Step 6: Final answer
   x = 670,738.47