Finding the Third Proportional to 186,466.50 and 402,417

Step by Step Solution

1. Step 1: Write the proportion equation
   186,466.50 : 402,417 = 402,417 : x
2. Step 2: Convert to fraction form
   186,466.50/402,417 = 402,417/x
3. Step 3: Cross multiply
   186,466.50x = 402,417 × 402,417
4. Step 4: Simplify right side
   186,466.50x = 161,939,441,889
5. Step 5: Solve for x
   x = 161,939,441,889/186,466.50
6. Step 6: Final answer
   x = 868,464.00