Finding the Third Proportional to 3,921,142.50 and 8,493,606

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921,142.50 : 8,493,606 = 8,493,606 : x
2. Step 2: Convert to fraction form
   3,921,142.50/8,493,606 = 8,493,606/x
3. Step 3: Cross multiply
   3,921,142.50x = 8,493,606 × 8,493,606
4. Step 4: Simplify right side
   3,921,142.50x = 72,141,342,883,236
5. Step 5: Solve for x
   x = 72,141,342,883,236/3,921,142.50
6. Step 6: Final answer
   x = 18,398,041.61