Finding the Third Proportional to 152,708.63 and 309,521.25

Step by Step Solution

1. Step 1: Write the proportion equation
   152,708.63 : 309,521.25 = 309,521.25 : x
2. Step 2: Convert to fraction form
   152,708.63/309,521.25 = 309,521.25/x
3. Step 3: Cross multiply
   152,708.63x = 309,521.25 × 309,521.25
4. Step 4: Simplify right side
   152,708.63x = 95,803,404,201.56
5. Step 5: Solve for x
   x = 95,803,404,201.56/152,708.63
6. Step 6: Final answer
   x = 627,360.79