Finding the Third Proportional to 8,737,819.88 and 13,106,731.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,737,819.88 : 13,106,731.50 = 13,106,731.50 : x
2. Step 2: Convert to fraction form
   8,737,819.88/13,106,731.50 = 13,106,731.50/x
3. Step 3: Cross multiply
   8,737,819.88x = 13,106,731.50 × 13,106,731.50
4. Step 4: Simplify right side
   8,737,819.88x = 171,786,410,613,092.25
5. Step 5: Solve for x
   x = 171,786,410,613,092.25/8,737,819.88
6. Step 6: Final answer
   x = 19,660,099.78