Finding the Third Proportional to 3,877,641 and 5,921,437.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,877,641 : 5,921,437.50 = 5,921,437.50 : x
2. Step 2: Convert to fraction form
   3,877,641/5,921,437.50 = 5,921,437.50/x
3. Step 3: Cross multiply
   3,877,641x = 5,921,437.50 × 5,921,437.50
4. Step 4: Simplify right side
   3,877,641x = 35,063,422,066,406.25
5. Step 5: Solve for x
   x = 35,063,422,066,406.25/3,877,641
6. Step 6: Final answer
   x = 9,042,462.17