Finding the Third Proportional to 190,683 and 288,484.50

Step by Step Solution

1. Step 1: Write the proportion equation
   190,683 : 288,484.50 = 288,484.50 : x
2. Step 2: Convert to fraction form
   190,683/288,484.50 = 288,484.50/x
3. Step 3: Cross multiply
   190,683x = 288,484.50 × 288,484.50
4. Step 4: Simplify right side
   190,683x = 83,223,306,740.25
5. Step 5: Solve for x
   x = 83,223,306,740.25/190,683
6. Step 6: Final answer
   x = 436,448.49