Finding the Third Proportional to 430,789.50 and 939,912

Step by Step Solution

1. Step 1: Write the proportion equation
   430,789.50 : 939,912 = 939,912 : x
2. Step 2: Convert to fraction form
   430,789.50/939,912 = 939,912/x
3. Step 3: Cross multiply
   430,789.50x = 939,912 × 939,912
4. Step 4: Simplify right side
   430,789.50x = 883,434,567,744
5. Step 5: Solve for x
   x = 883,434,567,744/430,789.50
6. Step 6: Final answer
   x = 2,050,733.75