Finding the Third Proportional to 54,244,378.69 and 81,871,010.72

Step by Step Solution

1. Step 1: Write the proportion equation
   54,244,378.69 : 81,871,010.72 = 81,871,010.72 : x
2. Step 2: Convert to fraction form
   54,244,378.69/81,871,010.72 = 81,871,010.72/x
3. Step 3: Cross multiply
   54,244,378.69x = 81,871,010.72 × 81,871,010.72
4. Step 4: Simplify right side
   54,244,378.69x = 6,702,862,396,109,677
5. Step 5: Solve for x
   x = 6,702,862,396,109,677/54,244,378.69
6. Step 6: Final answer
   x = 123,567,871.15