Finding the Third Proportional to 411,927.50 and 868,142

Step by Step Solution

1. Step 1: Write the proportion equation
   411,927.50 : 868,142 = 868,142 : x
2. Step 2: Convert to fraction form
   411,927.50/868,142 = 868,142/x
3. Step 3: Cross multiply
   411,927.50x = 868,142 × 868,142
4. Step 4: Simplify right side
   411,927.50x = 753,670,532,164
5. Step 5: Solve for x
   x = 753,670,532,164/411,927.50
6. Step 6: Final answer
   x = 1,829,619.37