Finding the Third Proportional to 431,645 and 939,920.50

Step by Step Solution

1. Step 1: Write the proportion equation
   431,645 : 939,920.50 = 939,920.50 : x
2. Step 2: Convert to fraction form
   431,645/939,920.50 = 939,920.50/x
3. Step 3: Cross multiply
   431,645x = 939,920.50 × 939,920.50
4. Step 4: Simplify right side
   431,645x = 883,450,546,320.25
5. Step 5: Solve for x
   x = 883,450,546,320.25/431,645
6. Step 6: Final answer
   x = 2,046,706.31