Finding the Third Proportional to 31,269 and 63,811.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,269 : 63,811.50 = 63,811.50 : x
2. Step 2: Convert to fraction form
   31,269/63,811.50 = 63,811.50/x
3. Step 3: Cross multiply
   31,269x = 63,811.50 × 63,811.50
4. Step 4: Simplify right side
   31,269x = 4,071,907,532.25
5. Step 5: Solve for x
   x = 4,071,907,532.25/31,269
6. Step 6: Final answer
   x = 130,221.87