Finding the Third Proportional to 54,508,419 and 83,783,343.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,508,419 : 83,783,343.50 = 83,783,343.50 : x
2. Step 2: Convert to fraction form
   54,508,419/83,783,343.50 = 83,783,343.50/x
3. Step 3: Cross multiply
   54,508,419x = 83,783,343.50 × 83,783,343.50
4. Step 4: Simplify right side
   54,508,419x = 7,019,648,648,038,992
5. Step 5: Solve for x
   x = 7,019,648,648,038,992/54,508,419
6. Step 6: Final answer
   x = 128,780,998.91