Finding the Third Proportional to 199,557,210 and 426,693,036

Step by Step Solution

1. Step 1: Write the proportion equation
   199,557,210 : 426,693,036 = 426,693,036 : x
2. Step 2: Convert to fraction form
   199,557,210/426,693,036 = 426,693,036/x
3. Step 3: Cross multiply
   199,557,210x = 426,693,036 × 426,693,036
4. Step 4: Simplify right side
   199,557,210x = 182,066,946,970,897,280
5. Step 5: Solve for x
   x = 182,066,946,970,897,280/199,557,210
6. Step 6: Final answer
   x = 912,354,642.42