Finding the Third Proportional to 382,075,790 and 818,640,870

Step by Step Solution

1. Step 1: Write the proportion equation
   382,075,790 : 818,640,870 = 818,640,870 : x
2. Step 2: Convert to fraction form
   382,075,790/818,640,870 = 818,640,870/x
3. Step 3: Cross multiply
   382,075,790x = 818,640,870 × 818,640,870
4. Step 4: Simplify right side
   382,075,790x = 670,172,874,034,356,864
5. Step 5: Solve for x
   x = 670,172,874,034,356,864/382,075,790
6. Step 6: Final answer
   x = 1,754,031,246.09