Finding the Third Proportional to 9,973,312 and 21,838,328

Step by Step Solution

1. Step 1: Write the proportion equation
   9,973,312 : 21,838,328 = 21,838,328 : x
2. Step 2: Convert to fraction form
   9,973,312/21,838,328 = 21,838,328/x
3. Step 3: Cross multiply
   9,973,312x = 21,838,328 × 21,838,328
4. Step 4: Simplify right side
   9,973,312x = 476,912,569,835,584
5. Step 5: Solve for x
   x = 476,912,569,835,584/9,973,312
6. Step 6: Final answer
   x = 47,818,876.00