Finding the Third Proportional to 3,547,492 and 7,781,688

Step by Step Solution

1. Step 1: Write the proportion equation
   3,547,492 : 7,781,688 = 7,781,688 : x
2. Step 2: Convert to fraction form
   3,547,492/7,781,688 = 7,781,688/x
3. Step 3: Cross multiply
   3,547,492x = 7,781,688 × 7,781,688
4. Step 4: Simplify right side
   3,547,492x = 60,554,668,129,344
5. Step 5: Solve for x
   x = 60,554,668,129,344/3,547,492
6. Step 6: Final answer
   x = 17,069,712.39