Finding the Third Proportional to 31,308.75 and 45,838.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,308.75 : 45,838.50 = 45,838.50 : x
2. Step 2: Convert to fraction form
   31,308.75/45,838.50 = 45,838.50/x
3. Step 3: Cross multiply
   31,308.75x = 45,838.50 × 45,838.50
4. Step 4: Simplify right side
   31,308.75x = 2,101,168,082.25
5. Step 5: Solve for x
   x = 2,101,168,082.25/31,308.75
6. Step 6: Final answer
   x = 67,111.21