Finding the Third Proportional to 4,709,136 and 7,290,072

Step by Step Solution

1. Step 1: Write the proportion equation
   4,709,136 : 7,290,072 = 7,290,072 : x
2. Step 2: Convert to fraction form
   4,709,136/7,290,072 = 7,290,072/x
3. Step 3: Cross multiply
   4,709,136x = 7,290,072 × 7,290,072
4. Step 4: Simplify right side
   4,709,136x = 53,145,149,765,184
5. Step 5: Solve for x
   x = 53,145,149,765,184/4,709,136
6. Step 6: Final answer
   x = 11,285,541.50