Finding the Third Proportional to 142,047,815,730.50 and 309,101,768,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,047,815,730.50 : 309,101,768,698.50 = 309,101,768,698.50 : x
2. Step 2: Convert to fraction form
   142,047,815,730.50/309,101,768,698.50 = 309,101,768,698.50/x
3. Step 3: Cross multiply
   142,047,815,730.50x = 309,101,768,698.50 × 309,101,768,698.50
4. Step 4: Simplify right side
   142,047,815,730.50x = 95,543,903,412,540,992,913,408
5. Step 5: Solve for x
   x = 95,543,903,412,540,992,913,408/142,047,815,730.50
6. Step 6: Final answer
   x = 672,617,899,270.00