Finding the Third Proportional to 429,748.50 and 910,722

Step by Step Solution

1. Step 1: Write the proportion equation
   429,748.50 : 910,722 = 910,722 : x
2. Step 2: Convert to fraction form
   429,748.50/910,722 = 910,722/x
3. Step 3: Cross multiply
   429,748.50x = 910,722 × 910,722
4. Step 4: Simplify right side
   429,748.50x = 829,414,561,284
5. Step 5: Solve for x
   x = 829,414,561,284/429,748.50
6. Step 6: Final answer
   x = 1,929,999.90