Finding the Third Proportional to 141,378.50 and 307,300

Step by Step Solution

1. Step 1: Write the proportion equation
   141,378.50 : 307,300 = 307,300 : x
2. Step 2: Convert to fraction form
   141,378.50/307,300 = 307,300/x
3. Step 3: Cross multiply
   141,378.50x = 307,300 × 307,300
4. Step 4: Simplify right side
   141,378.50x = 94,433,290,000
5. Step 5: Solve for x
   x = 94,433,290,000/141,378.50
6. Step 6: Final answer
   x = 667,946.61