Finding the Third Proportional to 196,943,206 and 455,887,870

Step by Step Solution

1. Step 1: Write the proportion equation
   196,943,206 : 455,887,870 = 455,887,870 : x
2. Step 2: Convert to fraction form
   196,943,206/455,887,870 = 455,887,870/x
3. Step 3: Cross multiply
   196,943,206x = 455,887,870 × 455,887,870
4. Step 4: Simplify right side
   196,943,206x = 207,833,750,013,136,896
5. Step 5: Solve for x
   x = 207,833,750,013,136,896/196,943,206
6. Step 6: Final answer
   x = 1,055,297,891.38