Finding the Third Proportional to 55,697,877 and 85,147,699.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,697,877 : 85,147,699.50 = 85,147,699.50 : x
2. Step 2: Convert to fraction form
   55,697,877/85,147,699.50 = 85,147,699.50/x
3. Step 3: Cross multiply
   55,697,877x = 85,147,699.50 × 85,147,699.50
4. Step 4: Simplify right side
   55,697,877x = 7,250,130,730,142,300
5. Step 5: Solve for x
   x = 7,250,130,730,142,300/55,697,877
6. Step 6: Final answer
   x = 130,168,888.31