Finding the Third Proportional to 12,764,478 and 19,159,776

Step by Step Solution

1. Step 1: Write the proportion equation
   12,764,478 : 19,159,776 = 19,159,776 : x
2. Step 2: Convert to fraction form
   12,764,478/19,159,776 = 19,159,776/x
3. Step 3: Cross multiply
   12,764,478x = 19,159,776 × 19,159,776
4. Step 4: Simplify right side
   12,764,478x = 367,097,016,370,176
5. Step 5: Solve for x
   x = 367,097,016,370,176/12,764,478
6. Step 6: Final answer
   x = 28,759,265.86