Finding the Third Proportional to 7,877,688 and 17,099,840

Step by Step Solution

1. Step 1: Write the proportion equation
   7,877,688 : 17,099,840 = 17,099,840 : x
2. Step 2: Convert to fraction form
   7,877,688/17,099,840 = 17,099,840/x
3. Step 3: Cross multiply
   7,877,688x = 17,099,840 × 17,099,840
4. Step 4: Simplify right side
   7,877,688x = 292,404,528,025,600
5. Step 5: Solve for x
   x = 292,404,528,025,600/7,877,688
6. Step 6: Final answer
   x = 37,118,064.08