Finding the Third Proportional to 10,021,040 and 21,459,256.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,021,040 : 21,459,256.50 = 21,459,256.50 : x
2. Step 2: Convert to fraction form
   10,021,040/21,459,256.50 = 21,459,256.50/x
3. Step 3: Cross multiply
   10,021,040x = 21,459,256.50 × 21,459,256.50
4. Step 4: Simplify right side
   10,021,040x = 460,499,689,532,792.25
5. Step 5: Solve for x
   x = 460,499,689,532,792.25/10,021,040
6. Step 6: Final answer
   x = 45,953,283.25