Finding the Third Proportional to 647,961 and 912,070.50

Step by Step Solution

1. Step 1: Write the proportion equation
   647,961 : 912,070.50 = 912,070.50 : x
2. Step 2: Convert to fraction form
   647,961/912,070.50 = 912,070.50/x
3. Step 3: Cross multiply
   647,961x = 912,070.50 × 912,070.50
4. Step 4: Simplify right side
   647,961x = 831,872,596,970.25
5. Step 5: Solve for x
   x = 831,872,596,970.25/647,961
6. Step 6: Final answer
   x = 1,283,831.28