Finding the Third Proportional to 428,141.50 and 927,599

Step by Step Solution

1. Step 1: Write the proportion equation
   428,141.50 : 927,599 = 927,599 : x
2. Step 2: Convert to fraction form
   428,141.50/927,599 = 927,599/x
3. Step 3: Cross multiply
   428,141.50x = 927,599 × 927,599
4. Step 4: Simplify right side
   428,141.50x = 860,439,904,801
5. Step 5: Solve for x
   x = 860,439,904,801/428,141.50
6. Step 6: Final answer
   x = 2,009,709.18