Finding the Third Proportional to 284,695 and 436,557.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,695 : 436,557.50 = 436,557.50 : x
2. Step 2: Convert to fraction form
   284,695/436,557.50 = 436,557.50/x
3. Step 3: Cross multiply
   284,695x = 436,557.50 × 436,557.50
4. Step 4: Simplify right side
   284,695x = 190,582,450,806.25
5. Step 5: Solve for x
   x = 190,582,450,806.25/284,695
6. Step 6: Final answer
   x = 669,426.76