Finding the Third Proportional to 5,111,437,585.50 and 7,638,984,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,111,437,585.50 : 7,638,984,424.50 = 7,638,984,424.50 : x
2. Step 2: Convert to fraction form
   5,111,437,585.50/7,638,984,424.50 = 7,638,984,424.50/x
3. Step 3: Cross multiply
   5,111,437,585.50x = 7,638,984,424.50 × 7,638,984,424.50
4. Step 4: Simplify right side
   5,111,437,585.50x = 58,354,083,037,753,597,952
5. Step 5: Solve for x
   x = 58,354,083,037,753,597,952/5,111,437,585.50
6. Step 6: Final answer
   x = 11,416,373,977.31