Finding the Third Proportional to 281,881 and 436,753.50

Step by Step Solution

1. Step 1: Write the proportion equation
   281,881 : 436,753.50 = 436,753.50 : x
2. Step 2: Convert to fraction form
   281,881/436,753.50 = 436,753.50/x
3. Step 3: Cross multiply
   281,881x = 436,753.50 × 436,753.50
4. Step 4: Simplify right side
   281,881x = 190,753,619,762.25
5. Step 5: Solve for x
   x = 190,753,619,762.25/281,881
6. Step 6: Final answer
   x = 676,716.84