Finding the Third Proportional to 434,310 and 626,551.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,310 : 626,551.50 = 626,551.50 : x
2. Step 2: Convert to fraction form
   434,310/626,551.50 = 626,551.50/x
3. Step 3: Cross multiply
   434,310x = 626,551.50 × 626,551.50
4. Step 4: Simplify right side
   434,310x = 392,566,782,152.25
5. Step 5: Solve for x
   x = 392,566,782,152.25/434,310
6. Step 6: Final answer
   x = 903,886.12