Finding the Third Proportional to 139,804,932 and 209,707,418

Step by Step Solution

1. Step 1: Write the proportion equation
   139,804,932 : 209,707,418 = 209,707,418 : x
2. Step 2: Convert to fraction form
   139,804,932/209,707,418 = 209,707,418/x
3. Step 3: Cross multiply
   139,804,932x = 209,707,418 × 209,707,418
4. Step 4: Simplify right side
   139,804,932x = 43,977,201,164,226,720
5. Step 5: Solve for x
   x = 43,977,201,164,226,720/139,804,932
6. Step 6: Final answer
   x = 314,561,157.00