Finding the Third Proportional to 422,469 and 939,392.50

Step by Step Solution

1. Step 1: Write the proportion equation
   422,469 : 939,392.50 = 939,392.50 : x
2. Step 2: Convert to fraction form
   422,469/939,392.50 = 939,392.50/x
3. Step 3: Cross multiply
   422,469x = 939,392.50 × 939,392.50
4. Step 4: Simplify right side
   422,469x = 882,458,269,056.25
5. Step 5: Solve for x
   x = 882,458,269,056.25/422,469
6. Step 6: Final answer
   x = 2,088,811.89