Finding the Third Proportional to 8,573,494.50 and 18,493,128

Step by Step Solution

1. Step 1: Write the proportion equation
   8,573,494.50 : 18,493,128 = 18,493,128 : x
2. Step 2: Convert to fraction form
   8,573,494.50/18,493,128 = 18,493,128/x
3. Step 3: Cross multiply
   8,573,494.50x = 18,493,128 × 18,493,128
4. Step 4: Simplify right side
   8,573,494.50x = 341,995,783,224,384
5. Step 5: Solve for x
   x = 341,995,783,224,384/8,573,494.50
6. Step 6: Final answer
   x = 39,889,893.58