Finding the Third Proportional to 171,345,745 and 261,036,132

Step by Step Solution

1. Step 1: Write the proportion equation
   171,345,745 : 261,036,132 = 261,036,132 : x
2. Step 2: Convert to fraction form
   171,345,745/261,036,132 = 261,036,132/x
3. Step 3: Cross multiply
   171,345,745x = 261,036,132 × 261,036,132
4. Step 4: Simplify right side
   171,345,745x = 68,139,862,209,521,424
5. Step 5: Solve for x
   x = 68,139,862,209,521,424/171,345,745
6. Step 6: Final answer
   x = 397,674,667.73