Finding the Third Proportional to 142,047,815,768 and 309,101,768,776

Step by Step Solution

1. Step 1: Write the proportion equation
   142,047,815,768 : 309,101,768,776 = 309,101,768,776 : x
2. Step 2: Convert to fraction form
   142,047,815,768/309,101,768,776 = 309,101,768,776/x
3. Step 3: Cross multiply
   142,047,815,768x = 309,101,768,776 × 309,101,768,776
4. Step 4: Simplify right side
   142,047,815,768x = 95,543,903,460,451,772,530,688
5. Step 5: Solve for x
   x = 95,543,903,460,451,772,530,688/142,047,815,768
6. Step 6: Final answer
   x = 672,617,899,429.72