Finding the Third Proportional to 590,418 and 939,928.50

Step by Step Solution

1. Step 1: Write the proportion equation
   590,418 : 939,928.50 = 939,928.50 : x
2. Step 2: Convert to fraction form
   590,418/939,928.50 = 939,928.50/x
3. Step 3: Cross multiply
   590,418x = 939,928.50 × 939,928.50
4. Step 4: Simplify right side
   590,418x = 883,465,585,112.25
5. Step 5: Solve for x
   x = 883,465,585,112.25/590,418
6. Step 6: Final answer
   x = 1,496,339.18