Finding the Third Proportional to 429,723 and 910,672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   429,723 : 910,672.50 = 910,672.50 : x
2. Step 2: Convert to fraction form
   429,723/910,672.50 = 910,672.50/x
3. Step 3: Cross multiply
   429,723x = 910,672.50 × 910,672.50
4. Step 4: Simplify right side
   429,723x = 829,324,402,256.25
5. Step 5: Solve for x
   x = 829,324,402,256.25/429,723
6. Step 6: Final answer
   x = 1,929,904.62