Finding the Third Proportional to 542,372 and 1,188,136

Step by Step Solution

1. Step 1: Write the proportion equation
   542,372 : 1,188,136 = 1,188,136 : x
2. Step 2: Convert to fraction form
   542,372/1,188,136 = 1,188,136/x
3. Step 3: Cross multiply
   542,372x = 1,188,136 × 1,188,136
4. Step 4: Simplify right side
   542,372x = 1,411,667,154,496
5. Step 5: Solve for x
   x = 1,411,667,154,496/542,372
6. Step 6: Final answer
   x = 2,602,765.55