Finding the Third Proportional to 152,122 and 313,940

Step by Step Solution

1. Step 1: Write the proportion equation
   152,122 : 313,940 = 313,940 : x
2. Step 2: Convert to fraction form
   152,122/313,940 = 313,940/x
3. Step 3: Cross multiply
   152,122x = 313,940 × 313,940
4. Step 4: Simplify right side
   152,122x = 98,558,323,600
5. Step 5: Solve for x
   x = 98,558,323,600/152,122
6. Step 6: Final answer
   x = 647,890.01