Finding the Third Proportional to 120,783,441,473 and 262,772,850,111

Step by Step Solution

1. Step 1: Write the proportion equation
   120,783,441,473 : 262,772,850,111 = 262,772,850,111 : x
2. Step 2: Convert to fraction form
   120,783,441,473/262,772,850,111 = 262,772,850,111/x
3. Step 3: Cross multiply
   120,783,441,473x = 262,772,850,111 × 262,772,850,111
4. Step 4: Simplify right side
   120,783,441,473x = 69,049,570,755,458,075,983,872
5. Step 5: Solve for x
   x = 69,049,570,755,458,075,983,872/120,783,441,473
6. Step 6: Final answer
   x = 571,680,769,428.10