Finding the Third Proportional to 231,295.50 and 493,128

Step by Step Solution

1. Step 1: Write the proportion equation
   231,295.50 : 493,128 = 493,128 : x
2. Step 2: Convert to fraction form
   231,295.50/493,128 = 493,128/x
3. Step 3: Cross multiply
   231,295.50x = 493,128 × 493,128
4. Step 4: Simplify right side
   231,295.50x = 243,175,224,384
5. Step 5: Solve for x
   x = 243,175,224,384/231,295.50
6. Step 6: Final answer
   x = 1,051,361.68