Finding the Third Proportional to 120,783,441,479 and 262,772,850,123

Step by Step Solution

1. Step 1: Write the proportion equation
   120,783,441,479 : 262,772,850,123 = 262,772,850,123 : x
2. Step 2: Convert to fraction form
   120,783,441,479/262,772,850,123 = 262,772,850,123/x
3. Step 3: Cross multiply
   120,783,441,479x = 262,772,850,123 × 262,772,850,123
4. Step 4: Simplify right side
   120,783,441,479x = 69,049,570,761,764,623,089,664
5. Step 5: Solve for x
   x = 69,049,570,761,764,623,089,664/120,783,441,479
6. Step 6: Final answer
   x = 571,680,769,451.91