Finding the Third Proportional to 572,392 and 1,243,112

Step by Step Solution

1. Step 1: Write the proportion equation
   572,392 : 1,243,112 = 1,243,112 : x
2. Step 2: Convert to fraction form
   572,392/1,243,112 = 1,243,112/x
3. Step 3: Cross multiply
   572,392x = 1,243,112 × 1,243,112
4. Step 4: Simplify right side
   572,392x = 1,545,327,444,544
5. Step 5: Solve for x
   x = 1,545,327,444,544/572,392
6. Step 6: Final answer
   x = 2,699,771.21