Finding the Third Proportional to 139,804,976 and 209,707,482

Step by Step Solution

1. Step 1: Write the proportion equation
   139,804,976 : 209,707,482 = 209,707,482 : x
2. Step 2: Convert to fraction form
   139,804,976/209,707,482 = 209,707,482/x
3. Step 3: Cross multiply
   139,804,976x = 209,707,482 × 209,707,482
4. Step 4: Simplify right side
   139,804,976x = 43,977,228,006,780,320
5. Step 5: Solve for x
   x = 43,977,228,006,780,320/139,804,976
6. Step 6: Final answer
   x = 314,561,250.00