Finding the Third Proportional to 307,961.50 and 658,483

Step by Step Solution

1. Step 1: Write the proportion equation
   307,961.50 : 658,483 = 658,483 : x
2. Step 2: Convert to fraction form
   307,961.50/658,483 = 658,483/x
3. Step 3: Cross multiply
   307,961.50x = 658,483 × 658,483
4. Step 4: Simplify right side
   307,961.50x = 433,599,861,289
5. Step 5: Solve for x
   x = 433,599,861,289/307,961.50
6. Step 6: Final answer
   x = 1,407,967.75