Finding the Third Proportional to 4,973,663 and 7,908,888

Step by Step Solution

1. Step 1: Write the proportion equation
   4,973,663 : 7,908,888 = 7,908,888 : x
2. Step 2: Convert to fraction form
   4,973,663/7,908,888 = 7,908,888/x
3. Step 3: Cross multiply
   4,973,663x = 7,908,888 × 7,908,888
4. Step 4: Simplify right side
   4,973,663x = 62,550,509,396,544
5. Step 5: Solve for x
   x = 62,550,509,396,544/4,973,663
6. Step 6: Final answer
   x = 12,576,346.53