Finding the Third Proportional to 21,581,640 and 45,158,688

Step by Step Solution

1. Step 1: Write the proportion equation
   21,581,640 : 45,158,688 = 45,158,688 : x
2. Step 2: Convert to fraction form
   21,581,640/45,158,688 = 45,158,688/x
3. Step 3: Cross multiply
   21,581,640x = 45,158,688 × 45,158,688
4. Step 4: Simplify right side
   21,581,640x = 2,039,307,101,881,344
5. Step 5: Solve for x
   x = 2,039,307,101,881,344/21,581,640
6. Step 6: Final answer
   x = 94,492,684.61