Finding the Third Proportional to 171,111 and 399,787.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,111 : 399,787.50 = 399,787.50 : x
2. Step 2: Convert to fraction form
   171,111/399,787.50 = 399,787.50/x
3. Step 3: Cross multiply
   171,111x = 399,787.50 × 399,787.50
4. Step 4: Simplify right side
   171,111x = 159,830,045,156.25
5. Step 5: Solve for x
   x = 159,830,045,156.25/171,111
6. Step 6: Final answer
   x = 934,072.30