Finding the Third Proportional to 429,732 and 910,688.63

Step by Step Solution

1. Step 1: Write the proportion equation
   429,732 : 910,688.63 = 910,688.63 : x
2. Step 2: Convert to fraction form
   429,732/910,688.63 = 910,688.63/x
3. Step 3: Cross multiply
   429,732x = 910,688.63 × 910,688.63
4. Step 4: Simplify right side
   429,732x = 829,353,771,704.39
5. Step 5: Solve for x
   x = 829,353,771,704.39/429,732
6. Step 6: Final answer
   x = 1,929,932.54