Finding the Third Proportional to 475,443 and 647,554.50

Step by Step Solution

1. Step 1: Write the proportion equation
   475,443 : 647,554.50 = 647,554.50 : x
2. Step 2: Convert to fraction form
   475,443/647,554.50 = 647,554.50/x
3. Step 3: Cross multiply
   475,443x = 647,554.50 × 647,554.50
4. Step 4: Simplify right side
   475,443x = 419,326,830,470.25
5. Step 5: Solve for x
   x = 419,326,830,470.25/475,443
6. Step 6: Final answer
   x = 881,970.77