Finding the Third Proportional to 231,316.50 and 515,820

Step by Step Solution

1. Step 1: Write the proportion equation
   231,316.50 : 515,820 = 515,820 : x
2. Step 2: Convert to fraction form
   231,316.50/515,820 = 515,820/x
3. Step 3: Cross multiply
   231,316.50x = 515,820 × 515,820
4. Step 4: Simplify right side
   231,316.50x = 266,070,272,400
5. Step 5: Solve for x
   x = 266,070,272,400/231,316.50
6. Step 6: Final answer
   x = 1,150,243.38