Finding the Third Proportional to 347,503.50 and 711,939

Step by Step Solution

1. Step 1: Write the proportion equation
   347,503.50 : 711,939 = 711,939 : x
2. Step 2: Convert to fraction form
   347,503.50/711,939 = 711,939/x
3. Step 3: Cross multiply
   347,503.50x = 711,939 × 711,939
4. Step 4: Simplify right side
   347,503.50x = 506,857,139,721
5. Step 5: Solve for x
   x = 506,857,139,721/347,503.50
6. Step 6: Final answer
   x = 1,458,567.01