Finding the Third Proportional to 5,678,810 and 12,315,776

Step by Step Solution

1. Step 1: Write the proportion equation
   5,678,810 : 12,315,776 = 12,315,776 : x
2. Step 2: Convert to fraction form
   5,678,810/12,315,776 = 12,315,776/x
3. Step 3: Cross multiply
   5,678,810x = 12,315,776 × 12,315,776
4. Step 4: Simplify right side
   5,678,810x = 151,678,338,482,176
5. Step 5: Solve for x
   x = 151,678,338,482,176/5,678,810
6. Step 6: Final answer
   x = 26,709,528.67