Finding the Third Proportional to 12,767,999 and 17,916,032.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,767,999 : 17,916,032.50 = 17,916,032.50 : x
2. Step 2: Convert to fraction form
   12,767,999/17,916,032.50 = 17,916,032.50/x
3. Step 3: Cross multiply
   12,767,999x = 17,916,032.50 × 17,916,032.50
4. Step 4: Simplify right side
   12,767,999x = 320,984,220,541,056.25
5. Step 5: Solve for x
   x = 320,984,220,541,056.25/12,767,999
6. Step 6: Final answer
   x = 25,139,743.55