Finding the Third Proportional to 3,789,812,866.50 and 8,451,026,527.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789,812,866.50 : 8,451,026,527.50 = 8,451,026,527.50 : x
2. Step 2: Convert to fraction form
   3,789,812,866.50/8,451,026,527.50 = 8,451,026,527.50/x
3. Step 3: Cross multiply
   3,789,812,866.50x = 8,451,026,527.50 × 8,451,026,527.50
4. Step 4: Simplify right side
   3,789,812,866.50x = 71,419,849,368,508,710,912
5. Step 5: Solve for x
   x = 71,419,849,368,508,710,912/3,789,812,866.50
6. Step 6: Final answer
   x = 18,845,217,926.15