Finding the Third Proportional to 1,709,280 and 2,657,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,709,280 : 2,657,160 = 2,657,160 : x
2. Step 2: Convert to fraction form
   1,709,280/2,657,160 = 2,657,160/x
3. Step 3: Cross multiply
   1,709,280x = 2,657,160 × 2,657,160
4. Step 4: Simplify right side
   1,709,280x = 7,060,499,265,600
5. Step 5: Solve for x
   x = 7,060,499,265,600/1,709,280
6. Step 6: Final answer
   x = 4,130,686.18