Finding the Third Proportional to 300,775,572,118 and 455,038,074,825

Step by Step Solution

1. Step 1: Write the proportion equation
   300,775,572,118 : 455,038,074,825 = 455,038,074,825 : x
2. Step 2: Convert to fraction form
   300,775,572,118/455,038,074,825 = 455,038,074,825/x
3. Step 3: Cross multiply
   300,775,572,118x = 455,038,074,825 × 455,038,074,825
4. Step 4: Simplify right side
   300,775,572,118x = 207,059,649,540,442,300,612,608
5. Step 5: Solve for x
   x = 207,059,649,540,442,300,612,608/300,775,572,118
6. Step 6: Final answer
   x = 688,419,102,929.04