Finding the Third Proportional to 102,156 and 237,390

Step by Step Solution

1. Step 1: Write the proportion equation
   102,156 : 237,390 = 237,390 : x
2. Step 2: Convert to fraction form
   102,156/237,390 = 237,390/x
3. Step 3: Cross multiply
   102,156x = 237,390 × 237,390
4. Step 4: Simplify right side
   102,156x = 56,354,012,100
5. Step 5: Solve for x
   x = 56,354,012,100/102,156
6. Step 6: Final answer
   x = 551,646.62