Finding the Third Proportional to 464,212 and 626,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   464,212 : 626,329.50 = 626,329.50 : x
2. Step 2: Convert to fraction form
   464,212/626,329.50 = 626,329.50/x
3. Step 3: Cross multiply
   464,212x = 626,329.50 × 626,329.50
4. Step 4: Simplify right side
   464,212x = 392,288,642,570.25
5. Step 5: Solve for x
   x = 392,288,642,570.25/464,212
6. Step 6: Final answer
   x = 845,063.55