Finding the Third Proportional to 9,150,776 and 13,420,308

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150,776 : 13,420,308 = 13,420,308 : x
2. Step 2: Convert to fraction form
   9,150,776/13,420,308 = 13,420,308/x
3. Step 3: Cross multiply
   9,150,776x = 13,420,308 × 13,420,308
4. Step 4: Simplify right side
   9,150,776x = 180,104,666,814,864
5. Step 5: Solve for x
   x = 180,104,666,814,864/9,150,776
6. Step 6: Final answer
   x = 19,681,900.95