Finding the Third Proportional to 16,455,140 and 35,438,978

Step by Step Solution

1. Step 1: Write the proportion equation
   16,455,140 : 35,438,978 = 35,438,978 : x
2. Step 2: Convert to fraction form
   16,455,140/35,438,978 = 35,438,978/x
3. Step 3: Cross multiply
   16,455,140x = 35,438,978 × 35,438,978
4. Step 4: Simplify right side
   16,455,140x = 1,255,921,161,684,484
5. Step 5: Solve for x
   x = 1,255,921,161,684,484/16,455,140
6. Step 6: Final answer
   x = 76,323,942.65