Finding the Third Proportional to 142,513 and 301,117

Step by Step Solution

1. Step 1: Write the proportion equation
   142,513 : 301,117 = 301,117 : x
2. Step 2: Convert to fraction form
   142,513/301,117 = 301,117/x
3. Step 3: Cross multiply
   142,513x = 301,117 × 301,117
4. Step 4: Simplify right side
   142,513x = 90,671,447,689
5. Step 5: Solve for x
   x = 90,671,447,689/142,513
6. Step 6: Final answer
   x = 636,232.82