Finding the Third Proportional to 4,964,688 and 7,719,136

Step by Step Solution

1. Step 1: Write the proportion equation
   4,964,688 : 7,719,136 = 7,719,136 : x
2. Step 2: Convert to fraction form
   4,964,688/7,719,136 = 7,719,136/x
3. Step 3: Cross multiply
   4,964,688x = 7,719,136 × 7,719,136
4. Step 4: Simplify right side
   4,964,688x = 59,585,060,586,496
5. Step 5: Solve for x
   x = 59,585,060,586,496/4,964,688
6. Step 6: Final answer
   x = 12,001,773.44