Finding the Third Proportional to 573,729 and 1,248,789

Step by Step Solution

1. Step 1: Write the proportion equation
   573,729 : 1,248,789 = 1,248,789 : x
2. Step 2: Convert to fraction form
   573,729/1,248,789 = 1,248,789/x
3. Step 3: Cross multiply
   573,729x = 1,248,789 × 1,248,789
4. Step 4: Simplify right side
   573,729x = 1,559,473,966,521
5. Step 5: Solve for x
   x = 1,559,473,966,521/573,729
6. Step 6: Final answer
   x = 2,718,136.90