Finding the Third Proportional to 5,272,348 and 8,439,190

Step by Step Solution

1. Step 1: Write the proportion equation
   5,272,348 : 8,439,190 = 8,439,190 : x
2. Step 2: Convert to fraction form
   5,272,348/8,439,190 = 8,439,190/x
3. Step 3: Cross multiply
   5,272,348x = 8,439,190 × 8,439,190
4. Step 4: Simplify right side
   5,272,348x = 71,219,927,856,100
5. Step 5: Solve for x
   x = 71,219,927,856,100/5,272,348
6. Step 6: Final answer
   x = 13,508,199.36