Finding the Third Proportional to 130,404 and 286,152

Step by Step Solution

1. Step 1: Write the proportion equation
   130,404 : 286,152 = 286,152 : x
2. Step 2: Convert to fraction form
   130,404/286,152 = 286,152/x
3. Step 3: Cross multiply
   130,404x = 286,152 × 286,152
4. Step 4: Simplify right side
   130,404x = 81,882,967,104
5. Step 5: Solve for x
   x = 81,882,967,104/130,404
6. Step 6: Final answer
   x = 627,917.60