Finding the Third Proportional to 388,983,834 and 849,053,412

Step by Step Solution

1. Step 1: Write the proportion equation
   388,983,834 : 849,053,412 = 849,053,412 : x
2. Step 2: Convert to fraction form
   388,983,834/849,053,412 = 849,053,412/x
3. Step 3: Cross multiply
   388,983,834x = 849,053,412 × 849,053,412
4. Step 4: Simplify right side
   388,983,834x = 720,891,696,428,841,728
5. Step 5: Solve for x
   x = 720,891,696,428,841,728/388,983,834
6. Step 6: Final answer
   x = 1,853,269,039.53