Finding the Third Proportional to 139,771.50 and 307,002

Step by Step Solution

1. Step 1: Write the proportion equation
   139,771.50 : 307,002 = 307,002 : x
2. Step 2: Convert to fraction form
   139,771.50/307,002 = 307,002/x
3. Step 3: Cross multiply
   139,771.50x = 307,002 × 307,002
4. Step 4: Simplify right side
   139,771.50x = 94,250,228,004
5. Step 5: Solve for x
   x = 94,250,228,004/139,771.50
6. Step 6: Final answer
   x = 674,316.50