Finding the Third Proportional to 140,791 and 306,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,791 : 306,367.50 = 306,367.50 : x
2. Step 2: Convert to fraction form
   140,791/306,367.50 = 306,367.50/x
3. Step 3: Cross multiply
   140,791x = 306,367.50 × 306,367.50
4. Step 4: Simplify right side
   140,791x = 93,861,045,056.25
5. Step 5: Solve for x
   x = 93,861,045,056.25/140,791
6. Step 6: Final answer
   x = 666,669.35