Finding the Third Proportional to 92,430 and 189,240.75

Step by Step Solution

1. Step 1: Write the proportion equation
   92,430 : 189,240.75 = 189,240.75 : x
2. Step 2: Convert to fraction form
   92,430/189,240.75 = 189,240.75/x
3. Step 3: Cross multiply
   92,430x = 189,240.75 × 189,240.75
4. Step 4: Simplify right side
   92,430x = 35,812,061,460.56
5. Step 5: Solve for x
   x = 35,812,061,460.56/92,430
6. Step 6: Final answer
   x = 387,450.63