Finding the Third Proportional to 7,119,140 and 14,742,978

Step by Step Solution

1. Step 1: Write the proportion equation
   7,119,140 : 14,742,978 = 14,742,978 : x
2. Step 2: Convert to fraction form
   7,119,140/14,742,978 = 14,742,978/x
3. Step 3: Cross multiply
   7,119,140x = 14,742,978 × 14,742,978
4. Step 4: Simplify right side
   7,119,140x = 217,355,400,308,484
5. Step 5: Solve for x
   x = 217,355,400,308,484/7,119,140
6. Step 6: Final answer
   x = 30,531,131.61