Finding the Third Proportional to 139,804,924 and 209,707,406

Step by Step Solution

1. Step 1: Write the proportion equation
   139,804,924 : 209,707,406 = 209,707,406 : x
2. Step 2: Convert to fraction form
   139,804,924/209,707,406 = 209,707,406/x
3. Step 3: Cross multiply
   139,804,924x = 209,707,406 × 209,707,406
4. Step 4: Simplify right side
   139,804,924x = 43,977,196,131,248,832
5. Step 5: Solve for x
   x = 43,977,196,131,248,832/139,804,924
6. Step 6: Final answer
   x = 314,561,139.00