Finding the Third Proportional to 1,916,352 and 4,172,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916,352 : 4,172,688 = 4,172,688 : x
2. Step 2: Convert to fraction form
   1,916,352/4,172,688 = 4,172,688/x
3. Step 3: Cross multiply
   1,916,352x = 4,172,688 × 4,172,688
4. Step 4: Simplify right side
   1,916,352x = 17,411,325,145,344
5. Step 5: Solve for x
   x = 17,411,325,145,344/1,916,352
6. Step 6: Final answer
   x = 9,085,661.27