Finding the Third Proportional to 1,931.91 and 3,709.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.91 : 3,709.90 = 3,709.90 : x
2. Step 2: Convert to fraction form
   1,931.91/3,709.90 = 3,709.90/x
3. Step 3: Cross multiply
   1,931.91x = 3,709.90 × 3,709.90
4. Step 4: Simplify right side
   1,931.91x = 13,763,346.42
5. Step 5: Solve for x
   x = 13,763,346.42/1,931.91
6. Step 6: Final answer
   x = 7,124.23