Finding the Third Proportional to 407,466.50 and 890,658

Step by Step Solution

1. Step 1: Write the proportion equation
   407,466.50 : 890,658 = 890,658 : x
2. Step 2: Convert to fraction form
   407,466.50/890,658 = 890,658/x
3. Step 3: Cross multiply
   407,466.50x = 890,658 × 890,658
4. Step 4: Simplify right side
   407,466.50x = 793,271,672,964
5. Step 5: Solve for x
   x = 793,271,672,964/407,466.50
6. Step 6: Final answer
   x = 1,946,839.00