Finding the Third Proportional to 572,394 and 1,243,196

Step by Step Solution

1. Step 1: Write the proportion equation
   572,394 : 1,243,196 = 1,243,196 : x
2. Step 2: Convert to fraction form
   572,394/1,243,196 = 1,243,196/x
3. Step 3: Cross multiply
   572,394x = 1,243,196 × 1,243,196
4. Step 4: Simplify right side
   572,394x = 1,545,536,294,416
5. Step 5: Solve for x
   x = 1,545,536,294,416/572,394
6. Step 6: Final answer
   x = 2,700,126.65