Finding the Third Proportional to 621,598.50 and 959,856.50

Step by Step Solution

1. Step 1: Write the proportion equation
   621,598.50 : 959,856.50 = 959,856.50 : x
2. Step 2: Convert to fraction form
   621,598.50/959,856.50 = 959,856.50/x
3. Step 3: Cross multiply
   621,598.50x = 959,856.50 × 959,856.50
4. Step 4: Simplify right side
   621,598.50x = 921,324,500,592.25
5. Step 5: Solve for x
   x = 921,324,500,592.25/621,598.50
6. Step 6: Final answer
   x = 1,482,185.85