Finding the Third Proportional to 192,474 and 418,812.50

Step by Step Solution

1. Step 1: Write the proportion equation
   192,474 : 418,812.50 = 418,812.50 : x
2. Step 2: Convert to fraction form
   192,474/418,812.50 = 418,812.50/x
3. Step 3: Cross multiply
   192,474x = 418,812.50 × 418,812.50
4. Step 4: Simplify right side
   192,474x = 175,403,910,156.25
5. Step 5: Solve for x
   x = 175,403,910,156.25/192,474
6. Step 6: Final answer
   x = 911,312.23