Finding the Third Proportional to 462,788 and 699,116

Step by Step Solution

1. Step 1: Write the proportion equation
   462,788 : 699,116 = 699,116 : x
2. Step 2: Convert to fraction form
   462,788/699,116 = 699,116/x
3. Step 3: Cross multiply
   462,788x = 699,116 × 699,116
4. Step 4: Simplify right side
   462,788x = 488,763,181,456
5. Step 5: Solve for x
   x = 488,763,181,456/462,788
6. Step 6: Final answer
   x = 1,056,127.60