Finding the Third Proportional to 1,841,128 and 3,938,136

Step by Step Solution

1. Step 1: Write the proportion equation
   1,841,128 : 3,938,136 = 3,938,136 : x
2. Step 2: Convert to fraction form
   1,841,128/3,938,136 = 3,938,136/x
3. Step 3: Cross multiply
   1,841,128x = 3,938,136 × 3,938,136
4. Step 4: Simplify right side
   1,841,128x = 15,508,915,154,496
5. Step 5: Solve for x
   x = 15,508,915,154,496/1,841,128
6. Step 6: Final answer
   x = 8,423,594.21