Finding the Third Proportional to 414,172.50 and 905,889

Step by Step Solution

1. Step 1: Write the proportion equation
   414,172.50 : 905,889 = 905,889 : x
2. Step 2: Convert to fraction form
   414,172.50/905,889 = 905,889/x
3. Step 3: Cross multiply
   414,172.50x = 905,889 × 905,889
4. Step 4: Simplify right side
   414,172.50x = 820,634,880,321
5. Step 5: Solve for x
   x = 820,634,880,321/414,172.50
6. Step 6: Final answer
   x = 1,981,384.28