Finding the Third Proportional to 416,730 and 630,907.50

Step by Step Solution

1. Step 1: Write the proportion equation
   416,730 : 630,907.50 = 630,907.50 : x
2. Step 2: Convert to fraction form
   416,730/630,907.50 = 630,907.50/x
3. Step 3: Cross multiply
   416,730x = 630,907.50 × 630,907.50
4. Step 4: Simplify right side
   416,730x = 398,044,273,556.25
5. Step 5: Solve for x
   x = 398,044,273,556.25/416,730
6. Step 6: Final answer
   x = 955,161.07