Finding the Third Proportional to 5,029,434 and 10,291,280

Step by Step Solution

1. Step 1: Write the proportion equation
   5,029,434 : 10,291,280 = 10,291,280 : x
2. Step 2: Convert to fraction form
   5,029,434/10,291,280 = 10,291,280/x
3. Step 3: Cross multiply
   5,029,434x = 10,291,280 × 10,291,280
4. Step 4: Simplify right side
   5,029,434x = 105,910,444,038,400
5. Step 5: Solve for x
   x = 105,910,444,038,400/5,029,434
6. Step 6: Final answer
   x = 21,058,123.84