Finding the Third Proportional to 387,108 and 833,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   387,108 : 833,539.50 = 833,539.50 : x
2. Step 2: Convert to fraction form
   387,108/833,539.50 = 833,539.50/x
3. Step 3: Cross multiply
   387,108x = 833,539.50 × 833,539.50
4. Step 4: Simplify right side
   387,108x = 694,788,098,060.25
5. Step 5: Solve for x
   x = 694,788,098,060.25/387,108
6. Step 6: Final answer
   x = 1,794,817.20