Finding the Third Proportional to 4,188,253 and 9,118,133

Step by Step Solution

1. Step 1: Write the proportion equation
   4,188,253 : 9,118,133 = 9,118,133 : x
2. Step 2: Convert to fraction form
   4,188,253/9,118,133 = 9,118,133/x
3. Step 3: Cross multiply
   4,188,253x = 9,118,133 × 9,118,133
4. Step 4: Simplify right side
   4,188,253x = 83,140,349,405,689
5. Step 5: Solve for x
   x = 83,140,349,405,689/4,188,253
6. Step 6: Final answer
   x = 19,850,842.20