Finding the Third Proportional to 5,555,898 and 8,348,640

Step by Step Solution

1. Step 1: Write the proportion equation
   5,555,898 : 8,348,640 = 8,348,640 : x
2. Step 2: Convert to fraction form
   5,555,898/8,348,640 = 8,348,640/x
3. Step 3: Cross multiply
   5,555,898x = 8,348,640 × 8,348,640
4. Step 4: Simplify right side
   5,555,898x = 69,699,789,849,600
5. Step 5: Solve for x
   x = 69,699,789,849,600/5,555,898
6. Step 6: Final answer
   x = 12,545,188.89