Finding the Third Proportional to 129,274,890 and 205,801,362

Step by Step Solution

1. Step 1: Write the proportion equation
   129,274,890 : 205,801,362 = 205,801,362 : x
2. Step 2: Convert to fraction form
   129,274,890/205,801,362 = 205,801,362/x
3. Step 3: Cross multiply
   129,274,890x = 205,801,362 × 205,801,362
4. Step 4: Simplify right side
   129,274,890x = 42,354,200,601,055,040
5. Step 5: Solve for x
   x = 42,354,200,601,055,040/129,274,890
6. Step 6: Final answer
   x = 327,628,981.94