Finding the Third Proportional to 130,142 and 284,152

Step by Step Solution

1. Step 1: Write the proportion equation
   130,142 : 284,152 = 284,152 : x
2. Step 2: Convert to fraction form
   130,142/284,152 = 284,152/x
3. Step 3: Cross multiply
   130,142x = 284,152 × 284,152
4. Step 4: Simplify right side
   130,142x = 80,742,359,104
5. Step 5: Solve for x
   x = 80,742,359,104/130,142
6. Step 6: Final answer
   x = 620,417.38