Finding the Third Proportional to 10,151,407.50 and 21,139,327.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,151,407.50 : 21,139,327.50 = 21,139,327.50 : x
2. Step 2: Convert to fraction form
   10,151,407.50/21,139,327.50 = 21,139,327.50/x
3. Step 3: Cross multiply
   10,151,407.50x = 21,139,327.50 × 21,139,327.50
4. Step 4: Simplify right side
   10,151,407.50x = 446,871,167,152,256.25
5. Step 5: Solve for x
   x = 446,871,167,152,256.25/10,151,407.50
6. Step 6: Final answer
   x = 44,020,611.64