Finding the Third Proportional to 391,061,590.50 and 849,383,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   391,061,590.50 : 849,383,698.50 = 849,383,698.50 : x
2. Step 2: Convert to fraction form
   391,061,590.50/849,383,698.50 = 849,383,698.50/x
3. Step 3: Cross multiply
   391,061,590.50x = 849,383,698.50 × 849,383,698.50
4. Step 4: Simplify right side
   391,061,590.50x = 721,452,667,277,538,944
5. Step 5: Solve for x
   x = 721,452,667,277,538,944/391,061,590.50
6. Step 6: Final answer
   x = 1,844,856,883.94