Finding the Third Proportional to 9,172,593 and 19,781,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,172,593 : 19,781,475.50 = 19,781,475.50 : x
2. Step 2: Convert to fraction form
   9,172,593/19,781,475.50 = 19,781,475.50/x
3. Step 3: Cross multiply
   9,172,593x = 19,781,475.50 × 19,781,475.50
4. Step 4: Simplify right side
   9,172,593x = 391,306,772,957,100.25
5. Step 5: Solve for x
   x = 391,306,772,957,100.25/9,172,593
6. Step 6: Final answer
   x = 42,660,431.24