Finding the Third Proportional to 4,666,485 and 9,656,650

Step by Step Solution

1. Step 1: Write the proportion equation
   4,666,485 : 9,656,650 = 9,656,650 : x
2. Step 2: Convert to fraction form
   4,666,485/9,656,650 = 9,656,650/x
3. Step 3: Cross multiply
   4,666,485x = 9,656,650 × 9,656,650
4. Step 4: Simplify right side
   4,666,485x = 93,250,889,222,500
5. Step 5: Solve for x
   x = 93,250,889,222,500/4,666,485
6. Step 6: Final answer
   x = 19,983,111.32