Finding the Third Proportional to 231,856.50 and 488,619

Step by Step Solution

1. Step 1: Write the proportion equation
   231,856.50 : 488,619 = 488,619 : x
2. Step 2: Convert to fraction form
   231,856.50/488,619 = 488,619/x
3. Step 3: Cross multiply
   231,856.50x = 488,619 × 488,619
4. Step 4: Simplify right side
   231,856.50x = 238,748,527,161
5. Step 5: Solve for x
   x = 238,748,527,161/231,856.50
6. Step 6: Final answer
   x = 1,029,725.40