Finding the Third Proportional to 231,688.50 and 541,290

Step by Step Solution

1. Step 1: Write the proportion equation
   231,688.50 : 541,290 = 541,290 : x
2. Step 2: Convert to fraction form
   231,688.50/541,290 = 541,290/x
3. Step 3: Cross multiply
   231,688.50x = 541,290 × 541,290
4. Step 4: Simplify right side
   231,688.50x = 292,994,864,100
5. Step 5: Solve for x
   x = 292,994,864,100/231,688.50
6. Step 6: Final answer
   x = 1,264,606.85