Finding the Third Proportional to 132,667,968 and 287,066,940

Step by Step Solution

1. Step 1: Write the proportion equation
   132,667,968 : 287,066,940 = 287,066,940 : x
2. Step 2: Convert to fraction form
   132,667,968/287,066,940 = 287,066,940/x
3. Step 3: Cross multiply
   132,667,968x = 287,066,940 × 287,066,940
4. Step 4: Simplify right side
   132,667,968x = 82,407,428,040,963,600
5. Step 5: Solve for x
   x = 82,407,428,040,963,600/132,667,968
6. Step 6: Final answer
   x = 621,155,424.96