Finding the Third Proportional to 324,657 and 711,580.50

Step by Step Solution

1. Step 1: Write the proportion equation
   324,657 : 711,580.50 = 711,580.50 : x
2. Step 2: Convert to fraction form
   324,657/711,580.50 = 711,580.50/x
3. Step 3: Cross multiply
   324,657x = 711,580.50 × 711,580.50
4. Step 4: Simplify right side
   324,657x = 506,346,807,980.25
5. Step 5: Solve for x
   x = 506,346,807,980.25/324,657
6. Step 6: Final answer
   x = 1,559,636.19