Finding the Third Proportional to 436,554 and 656,455.50

Step by Step Solution

1. Step 1: Write the proportion equation
   436,554 : 656,455.50 = 656,455.50 : x
2. Step 2: Convert to fraction form
   436,554/656,455.50 = 656,455.50/x
3. Step 3: Cross multiply
   436,554x = 656,455.50 × 656,455.50
4. Step 4: Simplify right side
   436,554x = 430,933,823,480.25
5. Step 5: Solve for x
   x = 430,933,823,480.25/436,554
6. Step 6: Final answer
   x = 987,126.05