Finding the Third Proportional to 405,568.50 and 938,864.63

Step by Step Solution

1. Step 1: Write the proportion equation
   405,568.50 : 938,864.63 = 938,864.63 : x
2. Step 2: Convert to fraction form
   405,568.50/938,864.63 = 938,864.63/x
3. Step 3: Cross multiply
   405,568.50x = 938,864.63 × 938,864.63
4. Step 4: Simplify right side
   405,568.50x = 881,466,784,076.39
5. Step 5: Solve for x
   x = 881,466,784,076.39/405,568.50
6. Step 6: Final answer
   x = 2,173,410.37