Finding the Third Proportional to 422,590.50 and 939,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   422,590.50 : 939,667.50 = 939,667.50 : x
2. Step 2: Convert to fraction form
   422,590.50/939,667.50 = 939,667.50/x
3. Step 3: Cross multiply
   422,590.50x = 939,667.50 × 939,667.50
4. Step 4: Simplify right side
   422,590.50x = 882,975,010,556.25
5. Step 5: Solve for x
   x = 882,975,010,556.25/422,590.50
6. Step 6: Final answer
   x = 2,089,434.12