Finding the Third Proportional to 20,402,426 and 43,107,499

Step by Step Solution

1. Step 1: Write the proportion equation
   20,402,426 : 43,107,499 = 43,107,499 : x
2. Step 2: Convert to fraction form
   20,402,426/43,107,499 = 43,107,499/x
3. Step 3: Cross multiply
   20,402,426x = 43,107,499 × 43,107,499
4. Step 4: Simplify right side
   20,402,426x = 1,858,256,470,035,001
5. Step 5: Solve for x
   x = 1,858,256,470,035,001/20,402,426
6. Step 6: Final answer
   x = 91,080,172.04