Finding the Third Proportional to 139,258,466,523 and 209,035,094,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,258,466,523 : 209,035,094,800.50 = 209,035,094,800.50 : x
2. Step 2: Convert to fraction form
   139,258,466,523/209,035,094,800.50 = 209,035,094,800.50/x
3. Step 3: Cross multiply
   139,258,466,523x = 209,035,094,800.50 × 209,035,094,800.50
4. Step 4: Simplify right side
   139,258,466,523x = 43,695,670,858,254,022,344,704
5. Step 5: Solve for x
   x = 43,695,670,858,254,022,344,704/139,258,466,523
6. Step 6: Final answer
   x = 313,773,890,731.72