Finding the Third Proportional to 405,570.25 and 938,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   405,570.25 : 938,868.50 = 938,868.50 : x
2. Step 2: Convert to fraction form
   405,570.25/938,868.50 = 938,868.50/x
3. Step 3: Cross multiply
   405,570.25x = 938,868.50 × 938,868.50
4. Step 4: Simplify right side
   405,570.25x = 881,474,060,292.25
5. Step 5: Solve for x
   x = 881,474,060,292.25/405,570.25
6. Step 6: Final answer
   x = 2,173,418.93