Finding the Third Proportional to 861,123.50 and 1,886,407

Step by Step Solution

1. Step 1: Write the proportion equation
   861,123.50 : 1,886,407 = 1,886,407 : x
2. Step 2: Convert to fraction form
   861,123.50/1,886,407 = 1,886,407/x
3. Step 3: Cross multiply
   861,123.50x = 1,886,407 × 1,886,407
4. Step 4: Simplify right side
   861,123.50x = 3,558,531,369,649
5. Step 5: Solve for x
   x = 3,558,531,369,649/861,123.50
6. Step 6: Final answer
   x = 4,132,428.59