Finding the Third Proportional to 870,768 and 1,918,152

Step by Step Solution

1. Step 1: Write the proportion equation
   870,768 : 1,918,152 = 1,918,152 : x
2. Step 2: Convert to fraction form
   870,768/1,918,152 = 1,918,152/x
3. Step 3: Cross multiply
   870,768x = 1,918,152 × 1,918,152
4. Step 4: Simplify right side
   870,768x = 3,679,307,095,104
5. Step 5: Solve for x
   x = 3,679,307,095,104/870,768
6. Step 6: Final answer
   x = 4,225,358.64