Finding the Third Proportional to 285,768 and 609,494.63

Step by Step Solution

1. Step 1: Write the proportion equation
   285,768 : 609,494.63 = 609,494.63 : x
2. Step 2: Convert to fraction form
   285,768/609,494.63 = 609,494.63/x
3. Step 3: Cross multiply
   285,768x = 609,494.63 × 609,494.63
4. Step 4: Simplify right side
   285,768x = 371,483,697,903.89
5. Step 5: Solve for x
   x = 371,483,697,903.89/285,768
6. Step 6: Final answer
   x = 1,299,948.55