Finding the Third Proportional to 1,445,572 and 2,147,430

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,572 : 2,147,430 = 2,147,430 : x
2. Step 2: Convert to fraction form
   1,445,572/2,147,430 = 2,147,430/x
3. Step 3: Cross multiply
   1,445,572x = 2,147,430 × 2,147,430
4. Step 4: Simplify right side
   1,445,572x = 4,611,455,604,900
5. Step 5: Solve for x
   x = 4,611,455,604,900/1,445,572
6. Step 6: Final answer
   x = 3,190,055.98