Finding the Third Proportional to 186,503.50 and 402,805

Step by Step Solution

1. Step 1: Write the proportion equation
   186,503.50 : 402,805 = 402,805 : x
2. Step 2: Convert to fraction form
   186,503.50/402,805 = 402,805/x
3. Step 3: Cross multiply
   186,503.50x = 402,805 × 402,805
4. Step 4: Simplify right side
   186,503.50x = 162,251,868,025
5. Step 5: Solve for x
   x = 162,251,868,025/186,503.50
6. Step 6: Final answer
   x = 869,966.88