Finding the Third Proportional to 308,670,672,238 and 668,632,857,826

Step by Step Solution

1. Step 1: Write the proportion equation
   308,670,672,238 : 668,632,857,826 = 668,632,857,826 : x
2. Step 2: Convert to fraction form
   308,670,672,238/668,632,857,826 = 668,632,857,826/x
3. Step 3: Cross multiply
   308,670,672,238x = 668,632,857,826 × 668,632,857,826
4. Step 4: Simplify right side
   308,670,672,238x = 447,069,898,564,563,927,826,432
5. Step 5: Solve for x
   x = 447,069,898,564,563,927,826,432/308,670,672,238
6. Step 6: Final answer
   x = 1,448,371,804,561.50