Finding the Third Proportional to 9,742,888 and 13,621,134

Step by Step Solution

1. Step 1: Write the proportion equation
   9,742,888 : 13,621,134 = 13,621,134 : x
2. Step 2: Convert to fraction form
   9,742,888/13,621,134 = 13,621,134/x
3. Step 3: Cross multiply
   9,742,888x = 13,621,134 × 13,621,134
4. Step 4: Simplify right side
   9,742,888x = 185,535,291,445,956
5. Step 5: Solve for x
   x = 185,535,291,445,956/9,742,888
6. Step 6: Final answer
   x = 19,043,151.42