Finding the Third Proportional to 145,435,458 and 323,155,546

Step by Step Solution

1. Step 1: Write the proportion equation
   145,435,458 : 323,155,546 = 323,155,546 : x
2. Step 2: Convert to fraction form
   145,435,458/323,155,546 = 323,155,546/x
3. Step 3: Cross multiply
   145,435,458x = 323,155,546 × 323,155,546
4. Step 4: Simplify right side
   145,435,458x = 104,429,506,910,558,112
5. Step 5: Solve for x
   x = 104,429,506,910,558,112/145,435,458
6. Step 6: Final answer
   x = 718,047,086.64