Finding the Third Proportional to 387,466.50 and 849,696

Step by Step Solution

1. Step 1: Write the proportion equation
   387,466.50 : 849,696 = 849,696 : x
2. Step 2: Convert to fraction form
   387,466.50/849,696 = 849,696/x
3. Step 3: Cross multiply
   387,466.50x = 849,696 × 849,696
4. Step 4: Simplify right side
   387,466.50x = 721,983,292,416
5. Step 5: Solve for x
   x = 721,983,292,416/387,466.50
6. Step 6: Final answer
   x = 1,863,343.78