Finding the Third Proportional to 3,042,312 and 4,676,640

Step by Step Solution

1. Step 1: Write the proportion equation
   3,042,312 : 4,676,640 = 4,676,640 : x
2. Step 2: Convert to fraction form
   3,042,312/4,676,640 = 4,676,640/x
3. Step 3: Cross multiply
   3,042,312x = 4,676,640 × 4,676,640
4. Step 4: Simplify right side
   3,042,312x = 21,870,961,689,600
5. Step 5: Solve for x
   x = 21,870,961,689,600/3,042,312
6. Step 6: Final answer
   x = 7,188,927.92