Finding the Third Proportional to 5,426,136 and 8,398,053

Step by Step Solution

1. Step 1: Write the proportion equation
   5,426,136 : 8,398,053 = 8,398,053 : x
2. Step 2: Convert to fraction form
   5,426,136/8,398,053 = 8,398,053/x
3. Step 3: Cross multiply
   5,426,136x = 8,398,053 × 8,398,053
4. Step 4: Simplify right side
   5,426,136x = 70,527,294,190,809
5. Step 5: Solve for x
   x = 70,527,294,190,809/5,426,136
6. Step 6: Final answer
   x = 12,997,701.16