Finding the Third Proportional to 905,688 and 1,938,195

Step by Step Solution

1. Step 1: Write the proportion equation
   905,688 : 1,938,195 = 1,938,195 : x
2. Step 2: Convert to fraction form
   905,688/1,938,195 = 1,938,195/x
3. Step 3: Cross multiply
   905,688x = 1,938,195 × 1,938,195
4. Step 4: Simplify right side
   905,688x = 3,756,599,858,025
5. Step 5: Solve for x
   x = 3,756,599,858,025/905,688
6. Step 6: Final answer
   x = 4,147,785.84