Finding the Third Proportional to 2,221,526,639 and 4,626,927,688

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221,526,639 : 4,626,927,688 = 4,626,927,688 : x
2. Step 2: Convert to fraction form
   2,221,526,639/4,626,927,688 = 4,626,927,688/x
3. Step 3: Cross multiply
   2,221,526,639x = 4,626,927,688 × 4,626,927,688
4. Step 4: Simplify right side
   2,221,526,639x = 21,408,459,829,981,024,256
5. Step 5: Solve for x
   x = 21,408,459,829,981,024,256/2,221,526,639
6. Step 6: Final answer
   x = 9,636,823,369.18