Finding the Third Proportional to 411,931.50 and 890,487

Step by Step Solution

1. Step 1: Write the proportion equation
   411,931.50 : 890,487 = 890,487 : x
2. Step 2: Convert to fraction form
   411,931.50/890,487 = 890,487/x
3. Step 3: Cross multiply
   411,931.50x = 890,487 × 890,487
4. Step 4: Simplify right side
   411,931.50x = 792,967,097,169
5. Step 5: Solve for x
   x = 792,967,097,169/411,931.50
6. Step 6: Final answer
   x = 1,924,997.47