Finding the Third Proportional to 10,021,042 and 21,459,261

Step by Step Solution

1. Step 1: Write the proportion equation
   10,021,042 : 21,459,261 = 21,459,261 : x
2. Step 2: Convert to fraction form
   10,021,042/21,459,261 = 21,459,261/x
3. Step 3: Cross multiply
   10,021,042x = 21,459,261 × 21,459,261
4. Step 4: Simplify right side
   10,021,042x = 460,499,882,666,121
5. Step 5: Solve for x
   x = 460,499,882,666,121/10,021,042
6. Step 6: Final answer
   x = 45,953,293.35