Finding the Third Proportional to 1,207 and 1,958.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,207 : 1,958.50 = 1,958.50 : x
2. Step 2: Convert to fraction form
   1,207/1,958.50 = 1,958.50/x
3. Step 3: Cross multiply
   1,207x = 1,958.50 × 1,958.50
4. Step 4: Simplify right side
   1,207x = 3,835,722.25
5. Step 5: Solve for x
   x = 3,835,722.25/1,207
6. Step 6: Final answer
   x = 3,177.90