Finding the Third Proportional to 171,345,766.50 and 261,036,155.25

Step by Step Solution

1. Step 1: Write the proportion equation
   171,345,766.50 : 261,036,155.25 = 261,036,155.25 : x
2. Step 2: Convert to fraction form
   171,345,766.50/261,036,155.25 = 261,036,155.25/x
3. Step 3: Cross multiply
   171,345,766.50x = 261,036,155.25 × 261,036,155.25
4. Step 4: Simplify right side
   171,345,766.50x = 68,139,874,347,702,104
5. Step 5: Solve for x
   x = 68,139,874,347,702,104/171,345,766.50
6. Step 6: Final answer
   x = 397,674,688.67