Finding the Third Proportional to 186,304.50 and 402,120

Step by Step Solution

1. Step 1: Write the proportion equation
   186,304.50 : 402,120 = 402,120 : x
2. Step 2: Convert to fraction form
   186,304.50/402,120 = 402,120/x
3. Step 3: Cross multiply
   186,304.50x = 402,120 × 402,120
4. Step 4: Simplify right side
   186,304.50x = 161,700,494,400
5. Step 5: Solve for x
   x = 161,700,494,400/186,304.50
6. Step 6: Final answer
   x = 867,936.60