Finding the Third Proportional to 7,812,638 and 17,138,012

Step by Step Solution

1. Step 1: Write the proportion equation
   7,812,638 : 17,138,012 = 17,138,012 : x
2. Step 2: Convert to fraction form
   7,812,638/17,138,012 = 17,138,012/x
3. Step 3: Cross multiply
   7,812,638x = 17,138,012 × 17,138,012
4. Step 4: Simplify right side
   7,812,638x = 293,711,455,312,144
5. Step 5: Solve for x
   x = 293,711,455,312,144/7,812,638
6. Step 6: Final answer
   x = 37,594,402.21